650B

- Position Front - Wheel Diameter/ISO 27.5'' / 584 - Axle Type QR - Hub Spacing 100mm - Wheel-Brake Comp. Rim - Freehub Body - - Wheel Tire Type Clincher - Rim Material Aluminum - Rim Construction Double wall - Rim Internal Width 19mm - Rim inner width range 0-21.9mm - Rim Color Black - Rim Drilling 36 - Hub Model Formula FM-21-QR - Wheel Weight - - Spoke Type Stainless - Valve Schrader - Rim External Width - - Depth 20mm - Rim Model Evo E-Tour 19 - Skewers Included Yes

- Position Front - Wheel Diameter/ISO 27.5'' / 584 - Axle Type QR - Hub Spacing 100mm - Wheel-Brake Comp. Rim and Disc IS 6-bolt - Freehub Body - - Wheel Tire Type Clincher - Rim Material Aluminum - Rim Construction Double wall - Rim Internal Width 19mm - Rim inner width range 0-21.9mm - Rim Color Black - Rim Drilling 36 - Hub Model Formula DC-20 - Wheel Weight - - Spoke Type Stainless - Valve Schrader - Rim External Width - - Depth 20mm - Rim Model Evo E-Tour 19 - Skewers Included Yes

- Evo Tour 19 27.5" double wall rim - Black - Inner Rim Width: 19 mm - Rim Height: 20 mm - Pin joint construction - No Eyelets - Schrader valve - 36 holes - Stainless steel spokes - Silver - Cassette Compatibility: Shimano HG

Rims: Evo Tour 19 27.5" - ETRTO 584-19 - Inner width: 19mm - 6061-T6 Alloy - Double Wall - Powder Coat satin black finish - CNC machined sidewalls - Drilled for Schrader valve - Rim or Disc Brake compatible - 36 holes Rear hub: - QR 10x135mm (Quick Release binder included) - 6-Bolt ISO disc mount - 6061-T6 Alloy - Anodized black finish - Adjustable bearings - Rubber seals - HG freehub compatible with 8/9/10 speed

Rims: WTB DX18 27.5'' (ETRTO 584), inner width: 18 mm - Anodized black finish - CNC machined sidewalls - Stainless steel eyelets - Rim wear indicator - Pinned joint - Drilled for Schrader valve - 36 holes Rear hub: Alloy, Disc and Rim brake compatible, Shimano HG, Sealed, Quick Release, Hollow CrMo axle M10x135mm - Anodized black finish - Adjustable bearings - Quick Release Binders Included Assembled in North America by experienced wheel builders using Sapim 14G Stainless Steel spokes (Black) and 14mm Brass Polyax Nipples (Black)

- Rims: WTB ST i23 (Black), inner width: 23 mm - New TCS 2.0 Tubeless system - Solid Strip (included) protects and ensures a smooth surface between the tire and the rim - Easy On-Ramp profile allows for a smooth tire installation and stress- free inflation - Industrial Epoxy reinforced Pinned Joint provides repeatable tubeless consistency - Drilled for Presta valve - 32 holes - Rear hub: Shimano FH-MT200-B (Black), Shimano logo, M9x141mm BOOST141 - HG Freehub compatible with 8 - 10, MTB 11-speed - Center Lock disc mount - Adjustable bearings - Quick Release binder included - Assembled in North America by experienced wheelbuilders with Sapim 14G Stainless Steel spokes (Black) and 14mm Brass Polyax Nipples (Black) - Tubeless Compatible (Valve and Tape not included)

Rims: WTB DX18 27.5'' (ETRTO 584), inner width: 18 mm - Anodized black finish - CNC machined sidewalls - Stainless steel eyelets - Rim wear indicator - Pinned joint - Drilled for Schrader valve - 36 holes Front hub: Shimano HB-M475 (Black) - 9x100mm - 6-Bolt Disc Mount - Adjustable Cup & Cone - Contact sealed hub - Quick Release Binder included Rear hub: Shimano FH-M475 (Black) - 10x135mm - 6-Bolt Disc Mount - Adjustable Cup & Cone - Contact sealed hub and freehub body - Quick Release Binder included - Compatible with 8,9,10 speed (MTB 11 speed requires 1.85mm spacer, not included) - Assembled in North America by experienced wheel builders using Sapim 14G Stainless Steel spokes (Black) and 14mm Brass Polyax Nipples (Black)

Rims: WTB HTZ i30 27.5" - ETRTO 584-30 - Inner width: 30mm - 6061 series aluminum - Asymetric and angled spoke hole drilling distributes spoke tension more evenly - Reinforced I-Beam profile - Strong sleeved joint - Drilled for Presta valve - TCS 2.0 Tubeless System compatible - Solid Strip included - Tubeless valve included - 32 holes Front hub: Shimano HB-MT400-B Boost - 15x110mm (Axle not included) - Center Lock (6-Bolt adapter included) - Angular contact bearings - Contact sealed hub Assembled in North America by experienced wheelbuilders with Sapim Race spokes (Black), 14mm Brass Polyax Nipples (Black)

Rims: EVO JP95 27.5" - ETRTO 584-94 - Inner width: 94mm - Disc Brake Only - Drilled for Schrader valve - 32 holes Front hub: Novatec D201SB - 15x150mm (Axle not included) - 6-Bolt Disc Mount - Sealed cartridge bearings (x2) Assembled in North America by experienced wheelbuilders with Sapim stainless steel spokes (Black) and 14mm Brass Polyax Nipples (Black)

Rims: EVO JP95 27.5" - ETRTO 584-94 - Inner width: 94mm - Disc Brake Only - Drilled for Schrader valve - 32 holes Rear hub: Novatec D202SB - 12x197mm (Axle not included) - 6-Bolt Disc Mount - Sealed cartridge bearings (x5) - Compatible with 8-11 speed MTB (12 speed HG with 1.85mm spacer, not included) Assembled in North America by experienced wheelbuilders with Sapim stainless steel spokes (Black) and 14mm Brass Polyax Nipples (Black)

Rims: WTB HTZ i30 27.5" - ETRTO 584-30 - Inner width: 30mm - 6061 series aluminum - Asymetric and angled spoke hole drilling distributes spoke tension more evenly - Reinforced I-Beam profile - Strong sleeved joint - Drilled for Presta valve - TCS 2.0 Tubeless System compatible - Solid Strip included - Tubeless valve included - 32 holes Rear hubs options: Shimano XT FH-M8110-B (Boost, MS) - Center Lock (6-Bolt adapter included) - Quick Engagement Freehub, 36 Points of Contact, 10 deg. engagement - HG compatible Shimano 11spd and Sram NX / SX splined 12spd (10spd and below needs spacer) - MS compatible 12 Spd Shimano Micro Spline Assembled in North America by experienced wheelbuilders with Sapim Race spokes (Black), Polyax Nipples (Black)

Rims: WTB HTZ i30 27.5" - ETRTO 584-30 - Inner width: 30mm - 6061 series aluminum - Asymetric and angled spoke hole drilling distributes spoke tension more evenly - Reinforced I-Beam profile - Strong sleeved joint - Drilled for Presta valve - TCS 2.0 Tubeless System compatible - Solid Strip included - Tubeless valve included - 32 holes Rear hubs: FH-M8130-B (SuperBoost, MS) - Center Lock (6-Bolt adapter included) - Quick Engagement Freehub, 36 Points of Contact, 10 deg. engagement - HG compatible Shimano 11spd and Sram NX / SX splined 12spd (10spd and below needs spacer) - MS compatible 12 Spd Shimano Micro Spline Assembled in North America by experienced wheelbuilders with Sapim Race spokes (Black), Polyax Nipples (Black)

Proterra Tough i30 wheels keep the trail in check while everything else blurs by in the periphery. Reinforced by our proven Dual I-Beam support, Proterra Tough rims feature a 30mm internal width to provide higher tire volume while also increasing sidewall support at lower pressures. High-quality EZO sealed bearings are designed to endure through seasons of aggressive riding, while a responsive 6-pawl freehub provides the snappy 3.7 degrees of engagement you demand when cranking out of corners. Choose Proterra Tough when you need a wheel that won't let you down. - 30mm inner rim width with 32 spokes laced in a 3-cross pattern - 6069 aluminum alloy rim is TCS 2.0 tubeless-ready - Sapim Secure Lock 14-gauge brass nipples provide bomber durability, while double butted 2.0/1.8/2.0mm J-bend spokes make replacement a breeze. - Tubeless tape, Solid Strip, and black alloy valves are preinstalled, making the wheels ready for tubeless tires the moment they arrive on your doorstep. The TCS 2.0 Solid Strip is a durable strip that lies beneath the tape, prevents it from sagging at the spoke holes, makes it easier to mount a tire, and protects from puncture in the case of a broken spoke. - 6-bolt rotor mounts - Top-tier EZO sealed bearings

Proterra Tough i30 wheels keep the trail in check while everything else blurs by in the periphery. Reinforced by our proven Dual I-Beam support, Proterra Tough rims feature a 30mm internal width to provide higher tire volume while also increasing sidewall support at lower pressures. High-quality EZO sealed bearings are designed to endure through seasons of aggressive riding, while a responsive 6-pawl freehub provides the snappy 3.7 degrees of engagement you demand when cranking out of corners. Choose Proterra Tough when you need a wheel that won't let you down. - 30mm inner rim width with 32 spokes laced in a 3-cross pattern - 6069 aluminum alloy rim is TCS 2.0 tubeless-ready - Sapim Secure Lock 14-gauge brass nipples provide bomber durability, while double butted 2.0/1.8/2.0mm J-bend spokes make replacement a breeze. - Tubeless tape, Solid Strip, and black alloy valves are preinstalled, making the wheels ready for tubeless tires the moment they arrive on your doorstep. The TCS 2.0 Solid Strip is a durable strip that lies beneath the tape, prevents it from sagging at the spoke holes, makes it easier to mount a tire, and protects from puncture in the case of a broken spoke. - 6-bolt rotor mounts - Top-tier EZO sealed bearings

Versatility, durability, and performance designed for the gravel adventurer. Proven Duroc rim technology, wide tubeless channel, and easy tubeless setup, the Duroc G30 Expert is ready to roll. - Duroc Alloy rim with welded seam - Tubeless Ready: Factory Taped, with valves and sealant included - Ringle SRX hubs with improved performance

Versatility, durability, and performance designed for the gravel adventurer. Proven Duroc rim technology, wide tubeless channel, and easy tubeless setup, the Duroc G30 Expert is ready to roll. - Duroc Alloy rim with welded seam - Tubeless Ready: Factory Taped, with valves and sealant included - Ringle SRX hubs with improved performance - Shimano HG11 Road and SRAM XDR freehub bodies included - 12° engagement driver

Duroc SD37 is the result of real-world EWS racing and good old-fashioned downhill thrash testing. - Welded and eyeleted Duroc SD37 rims for maximum impact resistance, widestance tire shaping, and STR tubeless tire retention - Straight-pull SRX hubs with high-strength Dual- Tooth pawls and precisionground steel axles - Wheelsmith doublebutted spokes and brass nipples, precision tension balanced with SpokePrep assembly compound for longevity - E-MTB approved for electric bicycles

Arch S2 wheelsets have the versatility to handle a wide range of riding conditions and are the ideal upgrade for Trail, AM, Enduro, and eBikes. When your average ride includes both tough climbs and rough descents and you want the best tubeless system in the business, the Arch S2 is for you. - Versatile 28mm internal rim width optimized for 2.2-2.5" tires - 6061 aluminum with sleeved joint and stainless steel rim eyelets - Patented BST low-profile rim shape for easy tubeless inflation and the most reliable seal - Matched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceability - E-sync hubs feature Enduro bearings with double-row freehub bearing and cromoly axle offer 47% increase in max torque capacity over Neo hubs - Connection program includes 3-year E-sync hub warranty, a 3-year S2 rim warranty, a 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choice - Tubeless tape installed requires additional valve stems

Upgrading to a set of quality tubeless wheels is the number one way to improve the ride of your XC or Gravel bike. Tubeless offers more comfort and control with less rolling resistance, and when it comes to tubeless, nothing beats the easy inflation and performance of Stan's patented Bead Socket Technology. First introduced over 15 years ago, the original Crest rim design with BST helped launch the tubeless revolution. Today's Crest S2 wheels offer quick and easy inflation, the legendary airtight seal, and a 25mm width that offers incredible stability for 40mm to 2.3" Gravel and XC tires. - 25mm rim width optimized for Gravel and XC tires up to 2.3" - 6061 aluminum with sleeved joint and stainless steel rim eyelets - Patented BST low-profile rim shape for easy tubeless inflation and the most reliable seal - Matched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceability - E-sync hubs feature Enduro bearings with double-row freehub bearing and cromoly axle offer 47% increase in max torque capacity over Neo hubs - Connection program includes a 3-year E-sync hub warranty, 3-year S2 rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choice - Tubeless tape installed, requires additional valve stems

Based on the legendary Flow rims that have won World Cup DH and Enduro World Series events, Flow S2 wheelsets are a great upgrade for riders looking for better tubeless performance and excellent durability. Patented Bead Socket Technology means easier tubeless inflation and more confidence on the trail. An emphasis on durability means a reinforced and eyeletted spoke bed, a quality sleeved joint, and 6061 alloy construction. A 30mm internal width makes the Flow S2 ideal for 2.3-2.6" tires. - Low-profile 30mm internal width optimizes tire shape, traction, and control for 2.3-2.6" tires - 6061 aluminum with sleeved joint and stainless steel rim eyelets - Patented BST low-profile rim shape for easy tubeless inflation and the most reliable seal - Matched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceability - E-sync hubs feature Enduro bearings with double-row freehub bearing and cromoly axle offer a 47% increase in max torque capacity over Neo hubs - Connection program includes a 3-year E-sync hub warranty, 3-year S2 rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choice - Tubeless tape installed, requires additional valve stems

- Light enough to take XC racing but was born from research and testing on the Enduro World Series circuit, making it a great rim for anyone looking to improve both descending and climbing - Asymmetric rim design allows for a stronger wheel while offering the easy inflation and Stan's trademark unmatched airtight seal. - 28mm internal width ideal for 2.2-2.5" tires - Light and durable 6069 aluminum with welded joint and reinforced spoke bed

- Asymmetric rim design allows for a stronger wheel while offering the easy inflation and Stan's trademark unmatched airtight seal. - 25mm width optimized for 40mm Gravel tires and up to 2.3" mountain tires - Light and durable 6069 aluminum with welded joint and reinforced spoke bed

- Low-profile 30mm internal width optimizes tire shape, traction, and control for 2.3-2.6" tires - Durable 6069 aluminum with welded joint and reinforced spoke bed - BST Asymmetric design combines Stan's legendary easy tubeless inflation with a stronger, more balanced wheel build - Reinforced spoke bed, combined with the offset drilling of the asym design, builds into an incredibly durable wheel that brings added confidence to every ride.

Arch S2 wheelsets have the versatility to handle a wide range of riding conditions and are the ideal upgrade for Trail, AM, Enduro, and eBikes. When your average ride includes both tough climbs and rough descents and you want the best tubeless system in the business, the Arch S2 is for you. - Versatile 28mm internal rim width optimized for 2.2-2.5" tires - 6061 aluminum with sleeved joint and stainless steel rim eyelets - Patented BST low-profile rim shape for easy tubeless inflation and the most reliable seal - Matched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceability - E-sync hubs offer fast 8.18 deg engagement with reinforced pawls - Enduro bearings with double-row freehub bearing and cromoly axle offer 47% increase in max torque capacity over Neo hubs - Connection program includes a 3-year E-sync hub warranty, a 3-year S2 rim warranty, a 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choice - Tubeless tape installed requires additional valve stems

Upgrading to a set of quality tubeless wheels is the number one way to improve the ride of your XC or Gravel bike. Tubeless offers more comfort and control with less rolling resistance, and when it comes to tubeless, nothing beats the easy inflation and performance of Stan's patented Bead Socket Technology. First introduced over 15 years ago, the original Crest rim design with BST helped launch the tubeless revolution. Today's Crest S2 wheels offer quick and easy inflation, the legendary airtight seal, and a 25mm width that offers incredible stability for 40mm to 2.3" Gravel and XC tires. - 25mm rim width optimized for Gravel and XC tires up to 2.3" - 6061 aluminum with sleeved joint and stainless steel rim eyelets - Patented BST low-profile rim shape for easy tubeless inflation and the most reliable seal - Matched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceability - E-sync hubs offer fast 8.18 deg engagement with reinforced pawls - Enduro bearings with double-row freehub bearing and cromoly axle offer a 47% increase in max torque capacity over Neo hubs - Connection program includes a 3-year E-sync hub warranty, 3-year S2 rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choice - Tubeless tape installed, requires additional valve stems

Based on the legendary Flow rims that have won World Cup DH and Enduro World Series events, Flow S2 wheelsets are a great upgrade for riders looking for better tubeless performance and excellent durability. Patented Bead Socket Technology means easier tubeless inflation and more confidence on the trail. An emphasis on durability means a reinforced and eyeletted spoke bed, a quality sleeved joint, and 6061 alloy construction. A 30mm internal width makes the Flow S2 ideal for 2.3-2.6” tires. - Low-profile 30mm internal width optimizes tire shape, traction, and control for 2.3-2.6” tires - 6061 aluminum with sleeved joint and stainless steel rim eyelets - Patented BST low-profile rim shape for easy tubeless inflation and the most reliable seal - Matched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceability - E-sync hubs offer fast 8.18 deg engagement with reinforced pawls - Enduro bearings with double-row freehub bearing and cromoly axle offer 47% increase in max torque capacity over Neo hubs - Connection program includes 3-year E-sync hub warranty, 3-year S2 rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choice - Tubeless tape installed, requires additional valve stems

- Designed, tested, and raced to victories on the World Cup DH and Enduro World Series circuits - Tie beam triple-cavity rim design resists damage and prevents air loss under impacts - 29mm internal width optimized for 2.35" to 2.8" Trail, All-mountain, and DH tires - E-sync hubs

- Designed, tested, and raced to victories on the World Cup DH and Enduro World Series circuits - Tie beam triple-cavity rim design resists damage and prevents air loss under impacts - 29mm internal width optimized for 2.35" to 2.8" Trail, All-mountain, and DH tires - E-sync hubs Specs: - Hub Model: E-SYNC - Freehub Body: Shimano HG - Wheel Tire Type: Tubeless Ready - Wheel-Brake Comp.: Disc IS 6-bolt - Rim Material: Aluminum - Spoke Type: Sapim D-Light - Valve: Presta - Rim Construction: Double wall

- Light enough to take XC racing but was born from research and testing on the Enduro World Series circuit, making it a great rim for anyone looking to improve both descending and climbing - Asymmetric rim design allows for a stronger wheel while offering the easy inflation and Stan's trademark unmatched airtight seal. - 28mm internal width ideal for 2.2-2.5" tires - Light and durable 6069 aluminum with welded joint and reinforced spoke bed

The Arch MK4 is the wheelset a lot of us here at Stan's choose to ride. All-mountain, Downcountry, Trailduro—whatever they're calling it this week, when you like pushing your limits on climbs, descents, and every kind of trail, this is your wheelset. The Arch MK4's 28mm internal width and patented lightweight, low-profile design is not afraid to climb, while being an absolute monster on the descents. With a welded seam, reinforced spoke bed, and durable 6069 aluminum construction, the Arch MK4 rims give you the confidence to ride everything. When it comes to a consistent and reliable airtight tubeless seal, nothing beats Stan's patented Bead Socket Technology. The Arch MK4 rims feature an asymmetric design with offset spoke holes to improve spoke angle and create a stronger all-around wheel. Unlike most asymmetric rims that suffer from difficult inflation and poor tubeless performance, Stan's BST-Asymmetric design delivers all the advantages of a stronger wheel, with no compromises in tubeless performance. Nobody likes downtime, so the Arch MK4 wheelset is built with traditional J-bend spokes based on their proven strength, ride quality, and easy serviceability. Stan's has always made it easy to find replacement spokes should you ever damage your wheel, and now we've made it even easier. MK4 front and rear wheels of the same diameter all use the exact same very common spoke length, both sides, front and rear. Serviceability doesn't get any easier than that. From the first click of the incredible M-pulse hubs, it's clear that confidence is the philosophy behind every part of this wheelset. Designed and CNC machined by Project321 in Bend, Oregon, M-pulse freehubs feature 6 pawls with Neodymium magnets that lock into place with greater force than conventional pawl springs, but offer virtually no resistance when coasting. Multiple teeth on each pawl offer better load distribution for years of trouble-free riding, and the angle of the pawls was engineered to transfer stress away from the rotating bearings, decreasing stress and wear on the entire freehub. That durability extends to the 17mm axles machined of 7075 aluminum and the full complement of Enduro brand bearings, including a double-row freehub bearing. M-pulse internals are also fully shielded inside the hub, because the only thing better than a good bearing seal is a good bearing seal most dirt can't even reach. As durable as they are, these hubs are also built for speed. M-pulse hubs engage with only 1.66°of rotation, putting down power nearly instantaneously, but how smooth these hubs roll is what really stands out. Adjustable preload allows you to fine tune M-pulse hubs for reduced friction, and less drag means more speed on the ground.The result is a bombproof hub with quick, consistent engagement and less resistance for more speed. Available with Shimano Micro Spline, HG, or SRAM XDR freehub, and 6-bolt or Centerlock brake style, with options to fit all popular axle configurations. Tubeless ready with rim tape installed. The Arch MK4 is our most versatile wheelset, and the best aluminum wheelset available for riders who want to push limits on every trail. Up, down, and wherever the ride takes you, the Arch MK4 wheelset has it under control. - Arch MK4 wheels include pre-installed tape for tubeless use and presta valves. - Versatile 28mm internal rim width optimized for 2.2-2.5” tires - Light and durable 6069 aluminum with welded joint and reinforced spoke bed - BST-Asymmetric design combines Stan’s legendary easy tubeless inflation with a stronger, more balanced wheel build - M-pulse ultra-low drag magnetic pawl adjustable hubs with 1.66° engagement - Enduro bearings with double-row freehub bearing - Matched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceability - Connection program includes 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choice

- Asymmetric rim design allows for a stronger wheel while offering the easy inflation and Stan's trademark unmatched airtight seal. - 25mm width optimized for 40mm Gravel tires and up to 2.3" mountain tires - Light and durable 6069 aluminum with welded joint and reinforced spoke bed

- Low-profile 30mm internal width optimizes tire shape, traction, and control for 2.3-2.6" tires - Durable 6069 aluminum with welded joint and reinforced spoke bed - BST Asymmetric design combines Stan's legendary easy tubeless inflation with a stronger, more balanced wheel build - Reinforced spoke bed, combined with the offset drilling of the asym design, builds into an incredibly durable wheel that brings added confidence to every ride.

The Flow CB7 brings Stan’s patented BST tubeless system to wider carbon rims to create a new classic, and one of the best all-around trail rims you can buy. The details all add up to a light, strong wheelset that’s easier to own and performs better on the trail. The Flow CB7 brings Stan’s legendary tubeless performance and great quality to a wider and stronger asymmetric carbon rim. - Designed for trail riding - Asymmetric Bead Socket Technology brings Stan’s easy inflation and the most reliable airtight seal to wider, offset carbon rims - Asymmetric rim shape with offset drilling improves bracing angle and balances spoke tension to create a stronger overall wheel - Custom carbon layup equalizes impact forces on both the long and short sides of the rim, making both stronger - Low-profile sidewalls and RiACT rim design create a lighter rim that absorbs impacts for less rolling resistance and superior ride quality - 100% CNC machined hubs with 6-pawl simultaneous engagement - Sapim Force Black 2.0/1.7/1.8 spokes with Secure Lock aluminum nipples - WideRight rim design optimized for 2.35 - 2.80" tires

- 27.5"x20 KT Alloy ATB style front wheel - STW A275 silver rim with silver hub - UCP silver spokes

Sta-Tru Double Wall Rear Wheels. - Hub/Brake Compatibility: Rim Brake - Wheel Size: 27.5" - Cassette Body Type: Shimano/SRAM 8, 9, 10 Speed - ISO Diameter: 584 / 650b / 27.5" - Valve: Schrader - Tire Type: Clincher - Rear Axle: QR x 135mm

Sun Duroc 40 Disc blk 32h - -01: STW Turbo Boost 6-Bolt disc - -02: STW Turbo Boost Shimano 6-Bolt disc

SURVIVAL OF THE STRONGEST: More than the strongest carbon wheelset in our known universe, Traverse HD i9 delivers unbeatable control and pinch-flat resistance in severe terrain, unlocking progression in the bike park, on a trail ride, or on World Cup Downhill track. STRONG LIKE BULL (NO BULL): Our strongest rim shape, combined with off-set spoke drilling and molded with optimized carbon fiber for front and rear-specific characteristics, adds up to the strongest carbon trail wheels we have ever made. SMOOTH AND STRONG: The front layup delivers a smooth, control-enhancing ride, while the rear optimizes stiffness and impact strength. HIGH PRECISION HANDLING: The fusion of control and durability—where stiffness meets grip, Traverse HD i9 glues you to your line and snaps you to the next with precision and speed. SAYONARA PINCH FLATS: Our U.S. patent pending Flat Top bead profile requires 85% more force to pinch flat compared to a standard round bead, virtually eliminating "snake bites.” AIR TIME: Thank our genius engineer, Chuck Teixeira, for inventing the “Roval ThreadBed Valve”—a valve that threads directly into the rim. This ingenious design eliminates compression nuts, air loss from rim flex, makes tire set-up easier, and reduces sealant clogs. HIGH ENGAGEMENT: The i9 1/1 hub optimizes control via a dual-phased-pawl drive mechanism, accomplishing 90 points of engagement and 4° engagement by way of a six-pawl driver and 45-tooth drivering. The result is immediate power transfer from the pedals to the drivetrain, propelling riders forward with minimum lag. Perfect for ratcheting through techy sections. LIFETIME WARRANTY: On Roval Wheels when registered within the first 90 days of purchase. CRASH REPLACEMENT: 2-Year “It Happens” No Fault Crash Replacement—If you damage your Roval product while riding within the first two years of ownership and it’s not covered under warranty, we’ll still replace or repair it. “It Happens” is market-specific, and wheels must be registered. Please contact Rider Care in your Country for more details. DETAILS: - Rim: Traverse HD Asymmetric, Carbon, Front: 29" - Rear: 29'' and 27.5'', Disc Brake, Zero Bead Hook Design, Tubeless Compatible, Compatible with Tire Inserts, Compatible with Roval Threaded Valve Stem - Rim Details: 24mm Depth, 40mm External Width, 30mm Internal Width, 5mm Bead Width, Threaded Valve Insert - Hub: i9 1/1 J-Bend 6-bolt, Six pawl driver and 45 tooth drivering (4 degs) , 110x15mm & 148x12mm, Sram XD Freehub (Convertible freehub ) - Bearing Type: Sealed Steel Cartridge Bearings - Spokes: Sapim D-Light J-Bend, 29: Front: Two-cross (1:1) 28 count, R: 286, L: 282 - Rear: Two-cross (1:1) 32 count, DS: 287mm NDS: 287mm - 27.5: Rear: Two-cross (1:1) 32 count, DS: 268mm NDS: 269mm - Nipple: Sapim, Secure Lock Double Square, Alloy, 18mm - Tire Size: 2.3" - 2.6" - Max Pressure: 2.3-2.6'': 40 psi - Weight: Wheelset 1,830g, Front 812g, Rear 1018g (Including tubeless rim tape and tubeless valve) - Assembly Method: Hand-built - Extras: Roval Tubeless Rim Tape, Threaded Valve Stem 37mm (Tire Insert Compatible), Spare Spoke & Nipple Kit, 31mm Endcaps, Lifetime Warranty, System Weight Limit: 275lbs / 125kg

Survival of the Strongest Traverse HD 240 DEG The Traverse HD is the strongest carbon trail wheel we’ve ever tested, engineered for those who live to send it—maybe harder than they should. Designed to handle big hits and rowdy lines, the Traverse HD 240 DEG is built to keep rolling no matter how hard you charge. At a Glance Use - Aggressive Trail, Enduro Weight (29") - 1,795 grams (with valves and tape) Front: 780g Rear: 1,015g Recommended Tires - Butcher and Eliminator Internal Width - 30mm Hub - DT Swiss 240 DEG 90 Teeth / 4 Degrees Spoke Count - 29 Front: 28H / 29 & 27.5 Rear: 32H Rear Hub - DT Swiss 240 J-Bend, 6-Bolt, 12x148mm

Trail wheels often fall into two categories—they're either heavy and durable or light and flexy. And because of this, a lightweight, wide-profile, and enduro-ready carbon wheel seems like something only found in a fairytale, but lucky for you, we made it a reality. The Traverse SL Fattie 27.5 puts all the flickable, nimble features you need in an all-mountain wheel into one package, and it has the results to prove it. Along with light overall weight, stiffness, and durability, another top priority for the Traverse SL was ease of use. First off, we got rid of the creaky straight-pull spokes and corrosion-prone alloy nipples. Next up, we landed on 28 J-bend spokes, for both the front and rear wheels, that are all the same length—making it easy to find replacements if needed. And finally, we engineered a new hub design, with a wider profile and higher flange to aid in overall stiffness. What's with the big-boned name, you ask? The Traverse SL Fatties may be wide, but with a 30mm inner rim width, they're far from the girth of a fat bike rim. But let's talk width. You've probably noticed that mountain bike rim widths have hovered between 19 and 23 millimeters for decades, and they've been long overdue for a change. In the search for a better wheel design, our engineers began testing 2.3- to 2.5-inch tires on 45-millimeter-wide fat bike rims to see what, if any, benefits could be found. It only took them a few rides to realize that the wider rims offered a variety of advantages, like adding additional tire volume, which better supports the tires in hard cornering, greatly improves traction because of the ability to run lower pressures, and noticeably increases rim stiffness. They did note that there is an occurrence of diminishing returns with increasing width, however, and after testing everything from 25 to 45mm, determined that a 30mm inner width is optimal. After determining the width, we began designing the rim using the knowledge that we gained when developing the Control SL. With this, we started with our Zero Bead Hook technology that gets rid of the weak spot found in a traditional wheel, and combined it with the wider profile to make a carbon rim that effectively dissipates forces. This way, you can take abuse from rocks without the worry of cracks or dents. Ok, so they're strong, impact-resistant, and tire supporting-they must be heavy, right? Wrong. Even though "fattie"? is in their name, they're far from fat. To achieve this weight, we hand-build our rims to our own alloy hubs, using only the highest quality DT Swiss Competition Race spokes. Inside our hubs, you'll find DT Swiss 240 internals with a quick engaging 54t DT Swiss star ratchet system in the rear that allows you to power over rocks and roots without delay. And while machines do a pretty good job of building wheels, we choose professionally trained humans because they do so with an artistic touch that makes for minimal flaws. Whether you need a carbon wheelset to get you through an enduro stage or one to shred your local rock garden, the Traverse SL Fattie has you covered. - Assembly Method: Hand-built - Bearing Type: Sealed cartridge - Every wheel includes tubeless valve stems in order to make tubeless set-up a touch easier. - Front Hub: Alloy body, 15mmx110 thru-axle, 19 and 31mm OD end cap options included. - Front Spoke Pattern: Two-cross - Nipple Type: DT Swiss Brass Pro Lock hexagonal - Rim Material: Carbon fiber - Rim Type: Carbon clincher, 2Bliss Ready, Zero Bead Hook design. Black graphic under clear coat. - Rim Width: 30mm internal - Roval Engineered J-bend hubshells have a single spoke length for each wheelset. - Spoke Count: 28h Front - Spoke Type: DT Swiss Competition Race J-bend - Total Wheelset Weight: 1690g

The Traverse Alloy rim geometry is optimized for strength, crafted with our most durable alloy, and laced to DT 350 hubs with stout Sapim spokes and Sapim alloy nipples. What does it all add up to? A wheelset that hits harder, holds up longer, and inspires you to go bigger and farther than any other trail wheel out there. ENGINEERED RIM The engineered rim shape emphasizes the durability and strength of alloy; creating our most durable alloy wheel we have ever made. 6013 ALLOY New 6013 alloy material finished with shot peening for impact strength and fatigue strength. OFFSET ADVANTAGE Engineered rim offset enables balanced spoke tension for improved fatigue life to keep you rolling. RIDE QUALITY Ride quality and impact targets derived from our factory enduro team riders. INTERNAL RIM 30mm internal rim width optimizes tire shape for the best traction. ENGINEERED SHAPE Engineered bead shape ensures the bead bends inward for air pressure /tire retention under impact, so you can always finish your ride. WEIGHT 1900g (with valve and tape). SPOKE COUNT F/R 28H Front and Rear HUB DT 350 Star Ratchet HUB ENGAGEMENT 36 Teeth / 10 Degrees INTERNALLY CANTED Internally canted bead shape ensures the bead bends inward for air pressure /tire retention under impact. INTENDED USE Trail, Park, Enduro WEIGHT (29) 1,904g (with valve and tape) WHEEL SIZES 29 (F/R) 27.5 (R) FOR LIFE Lifetime warranty on Roval Wheels when registered within the first 90 days of purchase. 2 YEAR If you damage your Roval product while riding within the first two years of ownership and it's not covered under warranty, we'll still replace or repair. USA Only and wheels must be registered. STRUCTURAL WEIGHT LIMIT (Rider & Cargo) - 125kg / 275lbs

SURVIVAL OF THE STRONGEST More Than the Strongest Carbon Wheelset In Our Known Universe, Traverse HDs deliver unbeatable control and pinch-flat resistance in severe terrain, unlocking progression in the bike park, on a trail ride, or on an Enduro World Series track. STRONG LIKE BULL (NO BULL) Our strongest off-set rim shape molded with optimized carbon fibers for front and rear specific characteristics, add up to our strongest carbon trail wheels we have ever made. SMOOTH AND STRONG Front layup delivers a smooth, control-enhancing ride, while the rear optimizes stiffness & impact strength. HIGH PRECISION HANDLING The fusion of control and durability; where stiffness meets grip, HD glues you to your line and snaps you to the next with precision and speed. SAYONARA PINCH FLATS Optimized "Flat Top" bead profile requires 85% more force to pinch flat compared to a standard round bead, virtually eliminating "snake bites." AIR TIME Thank our genius engineer, Chuck Teixeira, for inventing the the "AirChuck;" a valve that threads directly into the rim eliminating compression nuts, air loss from rim flex, makes tire set-up easier, and reduces sealant clogs. INTENDED USE Aggressive Trail, Park, Enduro WEIGHT (29): 1,706g 240 EXP (with valve and tape) WHEEL SIZES 29 (F/R) 27.5 (R) FOR LIFE Lifetime warranty on Roval Wheels when registered within the first 90 days of purchase. 2 YEAR "It Happens" No Fault Crash Replacement - If you damage your Roval product while riding within the first two years of ownership and it's not covered under warranty, we'll still replace or repair. USA Only and wheels must be registered. STRUCTURAL WEIGHT LIMIT (Rider & Cargo) - 125kg / 275lbs

Your wheels are arguably the most important component on your mountain bike, which is why Reserve developed an all-new line of do-it-all aluminum wheels. Reserve aluminum wheels have been designed and developed to provide a product that rivals the performance of the much-loved carbon wheels, but at a much more accessible price point. And with an industry-leading lifetime guarantee, you can feel confident you will be enjoying these wheels for years to come. 30 HD AL wheels are designed for everything from DH to trail to Ebikes. - Aluminum wheels are designed to withstand any abuse you can throw at them, supported by a Reserve lifetime guarantee - Asymmetrical rims build stiffer, stronger and more reliable wheels by improving the bracing angles and equalizing the spoke tensions between the drive and non-drive side spokes - Disc brake only, tubeless ready design with tape included - Includes the patented Fillmore valves with a high-flow design that eases tubeless set up and eliminates the traditional, delicate, clog-inciting valve core of yesteryear - 30 HD Al rims feature a 30mm width and 22mm depth profile that's designed for DH, Trail, All Mountain, Enduro and E-bikes - Recommended for tires 2.2 - 2.6" wide - Built with DT Swiss Hubs featuring DEG 90 points of engagement

Your wheels are arguably the most important component on your mountain bike, which is why Reserve developed an all-new aluminum line of trail wheels. Reserve aluminum wheels have been designed and developed to provide a product that rivals the performance of the much-loved carbon wheels, but at a much more accessible price point. And with an industry-leading lifetime guarantee, you can feel confident you will be enjoying these wheels for years to come. 30 SL AL wheels are designed for going fast on your favorite trails. - Aluminum wheels are designed to withstand any abuse you can throw at them, supported by a Reserve lifetime guarantee - Asymmetrical rims build stiffer, stronger and more reliable wheels by improving the bracing angles and equalizing the spoke tensions between the drive and non-drive side spokes - Disc brake only, tubeless ready design with tape included - Includes the patented Fillmore valves with a high-flow design that eases tubeless set up and eliminates the traditional, delicate, clog-inciting valve core of yesteryear - 30 SL Al rims feature a 30mm width and 20mm depth profile that's designed for XC, Trail and All Mountain riding - Recommended for tires 2.2 - 2.5" wide - Built with DT Swiss Hubs featuring DEG 90 points of engagement

Just like mixing ketchup and mayonnaise to create the perfect french-fry accoutrement, the perfect wheelset may require combining seemingly disparate things. In this case, it's the venerable 30 SL and 30 HD, built into the respective front and rear wheels to provide the perfect combination of compliance and stiffness for your trail riding please. It's the wheelset ridden by many, and starting today, something that you can have to! By combining the 30 SL and 30 HD in a front and rear wheelset package, Reserve is giving you the inside line to the perfect trail bike wheelset. Stiff and compliant in equal measure, the Frysauce wheelset delivers just what you need, where you need it most. - Designed for trail riding - Carbon fiber construction with 3.6mm asymmetric offset, build stiffer, stronger and more reliable wheels by improving the bracing angles and equalizing the spoke tensions between the drive and non-drive side spokes - Lower profile for added lateral stiffness with increased vertical compliance, redesigned rim bed eases tubeless installation, with a shaped rim bed utilizing offset spoke holes that allows the tire to easily push past the bead bump to seat tubeless tires - 30mm inner width supports 2.2 to 2.5" tires - Ships with rim tape installed, tubeless-ready valves, and cards identifying the Santa Cruz builder of each of your wheels - Backed by Santa Cruz lifetime warranty - Built with DT Swiss Hubs featuring DEG 90 points of engagement

Reserve 30 wheels feature a 30mm internal width that supports 2.3-2.5" tires, and the thick rim beads stand up to the abuse of tough, rocky, steep tracks ridden at elite speed. While DH rims see greater single impacts, nothing beats the full weekend of regular abuse that an EWS race dishes out. To say nothing of the infamous 'Anti-Grip' and the rocks buried within the moondust in the Andes of Chile. - Designed for DH riding and racing - Carbon fiber construction with 4mm asymmetric offset - Reinforced rim bed for impact resistance - Rated for e-bike use - Ships with rim tape installed, tubeless-ready valves, and cards identifying the builder of each of your wheels - Backed by a lifetime warranty - Built with Industry Nine Hubs

Reserve 30 wheels feature a 30mm internal width that supports 2.3-2.5" tires, and the thick rim beads stand up to the abuse of tough, rocky, steep tracks ridden at elite speed. While DH rims see greater single impacts, nothing beats the full weekend of regular abuse that an EWS race dishes out. To say nothing of the infamous 'Anti-Grip' and the rocks buried within the moondust in the Andes of Chile. - Designed for DH riding and racing - Carbon fiber construction with 4mm asymmetric offset - Reinforced rim bed for impact resistance - Rated for e-bike use - Ships with rim tape installed, tubeless-ready valves, and cards identifying the builder of each of your wheels - Backed by a lifetime warranty - Built with Industry Nine Hubs

Reserve 30 wheels feature a 30mm internal width that supports 2.3-2.5" tires, and the thick rim beads stand up to the abuse of tough, rocky, steep tracks ridden at elite speed. While DH rims see greater single impacts, nothing beats the full weekend of regular abuse that an EWS race dishes out. To say nothing of the infamous 'Anti-Grip' and the rocks buried within the moondust in the Andes of Chile. - Designed for DH riding and racing - Carbon fiber construction with 4mm asymmetric offset - Reinforced rim bed for impact resistance - Rated for e-bike use - Ships with rim tape installed, tubeless-ready valves, and cards identifying the builder of each of your wheels - Backed by a lifetime warranty

Reserve 30 wheels feature a 30mm internal width that supports 2.3-2.5" tires, and the thick rim beads stand up to the abuse of tough, rocky, steep tracks ridden at elite speed. While DH rims see greater single impacts, nothing beats the full weekend of regular abuse that an EWS race dishes out. To say nothing of the infamous 'Anti-Grip' and the rocks buried within the moondust in the Andes of Chile. - Designed for DH riding and racing - Carbon fiber construction with 4mm asymmetric offset - Reinforced rim bed for impact resistance - Rated for e-bike use - Ships with rim tape installed, tubeless-ready valves, and cards identifying the builder of each of your wheels - Backed by a lifetime warranty - Built with Industry Nine Hubs

Let’s face it, modern downhill tracks are not for the faint of heart. From the moment you drop in, it’s a hari cari mix of boulders, roots, bumps and jumps awaiting you, and literally the only thing keeping you upright and connecting you to the ground is your wheels. It’s serious business, and the abuse of a day riding DH is no joke, but the Reserve 31 DH wheels have your back. - Designed for DH riding and racing - Carbon fiber construction with 5mm asymmetric offset - Reinforced rim bed for impact resistance - Rated for e-bike use - Ships with rim tape installed, tubeless-ready valves, and cards identifying the builder of each of your wheels - Backed by a lifetime warranty

- Large oversized flange for improved bracing angle making a stiffer wheel - Larger bearings spaced wider apart for better stability and durability - 30mm internal width tubeless ready rim

Being a company of mountain bikers, when Race Face set out to design a new wheel the goal was simple: make the wheel they want to ride. R is for rally. HUB - Large oversize flange for improved bracing angle - Larger bearings - No bearing adjuster - Wider bearing stance - 6 double tooth pawls (3 engage at a time) - 120 points of engagement (3 degrees) - Each pawl has its own spring - Balanced spoke counter bore - Tool-free interchangeable end caps (sold separately) RIM - 30mm Internal width tubeless ready rim - 4.5mm Offset – Improves spoke balance and wheel stiffness - New stronger alloy for highest impact resistance of any Race Face or Easton rim - High gloss black water transfer logos

Race Face's first carbon wheelset comes to market during peak enduro, meaning people are hitting the trails as hard as they can at all angles. Striking the balance between shred-ready and climb-crushing, Race Face incorporated a generous 31mm internal width for a trail-stomping footprint, a durable carbon layout built for enduro style abuse, and an offset spoke hole layout delivering improved tension balance to up the sturdiness. With the Vault Hub’s super fast engagement, long bearing life and spoke flanges designed for maximizing lateral stability, you can take your rally to the next level. Get ready to be fast in every direction. 2 year no fault guarantee HUB - Large oversize flange for improved bracing angle - Larger bearings - No bearing adjuster needed - Wider bearing stance 6 double tooth pawls (3 engage at a time) - 120 points of engagement (3 degrees) - Independently sprung pawls - Balanced spoke counter bore - Tool-free interchangeable end caps (sold separately) RIM - Full carbon fiber construction - 31mm Internal width tubeless ready rim - 4.5mm Offset – Improves spoke balance and wheel stiffness - High gloss black water transfer logos

Blending the versatility and performance of tubeless ready rims with a broad range of axle compatibility makes these wheels a great choice for service or upgrades options. Rims can accommodate tubes and clincher tires without modification. - Tubeless ready Specifications: - Hub/Brake Compatibility: Center-Lock Disc - Color: Black - Wheel Size: 27.5" - ISO Diameter: 584 / 650b / 27.5" - Valve: Presta - Rim Width (Internal): 23 - Defined Color: Black - Front Axle: 15mm Thru x 110mm - Tire Type: Tubeless Ready Clincher

Blending the versatility and performance of tubeless ready rims with a broad range of axle compatibility makes these wheels a great choice for service or upgrades options. Rims can accommodate tubes and clincher tires without modification. - Tubeless ready Specifications: - Hub/Brake Compatibility: Center-Lock Disc - Color: Black - Wheel Size: 27.5" - ISO Diameter: 584 / 650b / 27.5" - Valve: Presta - Rim Width (Internal): 23 - Defined Color: Black - Front Axle: 15mm Thru x 110mm - Tire Type: Tubeless Ready Clincher

This dependable UST road wheel gives you the confidence you need to tackle rugged, adventurous roads with smooth control. With a 25mm wide rim profile in a 650B diameter, this UST Road Tubeless wheel system is built for adventure on the roughest terrain. Perfect for riding on rough roads, gravel or dirt, it gives you the smooth-riding performance of tubeless tires and makes it easy to set them up without any hassles. Low rolling resistance and a reduced risk of punctures add up to a better overall riding experience, especially on rugged terrain. The wheels are engineered for the unique demands of disc brakes, built up with 24 straight-pull spokes, which are stronger than J-bend spokes. So wherever the road goes, and however rough it gets, you're ready to keep things rolling. 

The new Mavic E-Speedcity wheels are made to last and endure, on an e-bike or utility bike, because we know there is nothing worse than being stopped by a mechanical issue on your way to or from work. Their maximum load capacity is 25% higher than the usual Mavic road wheels to take into consideration the extra weight of modern urban bikes and e-bikes, and they are designed from the ground up for easy service and maximum durability. Offered in 2 different diameters (700 and 650B), they fit most bikes. They are eligible to our Mavic Care program, which includes a free 3rd year of warranty, a crash replacement policy and the availability of spare parts for over 5 years.

This dependable UST road wheel gives you the confidence you need to tackle rugged, adventurous roads with smooth control. With a 25mm wide rim profile in a 650B diameter, this UST Road Tubeless wheel system is built for adventure on the roughest terrain. Perfect for riding on rough roads, gravel or dirt, it gives you the smooth-riding performance of tubeless tires and makes it easy to set them up without any hassles. Low rolling resistance and a reduced risk of punctures add up to a better overall riding experience, especially on rugged terrain. The wheels are engineered for the unique demands of disc brakes, built up with 24 straight-pull spokes, which are stronger than J-bend spokes. So wherever the road goes, and however rough it gets, you're ready to keep things rolling. 

The Classic Enduro S is designed for demanding trails to all mountain adventures, providing lightning-fast propulsion courtesy of the Hydra Classic hubs laced to the terrain-taming Enduro S alloy rim. The combination of materials creates a wheelset that's ready for charging those technical trails, making these the perfect upgrade for any mountain bike built to attack demanding terrain with long descents. - Enduro S Alloy rims with 30.5mm inner width and 28 spokes - 6-Pawl Hydra Freehub Body features 690 engagement points at every .52 degrees, yeilding telepathic control - Traditional and conventional flanged hubshell packed with i9 tech, while using a standard j-bend spoke and nipple - Accommodates tire widths 2.3-2.8"

The Enduro 300 wheelset features an aluminum triple-cavity rim featuring a Hollow Bead Wall designed to shrug off impacts and make pinch flats a distant memory. The wide, hollow structure contributes additional surface area to reduce the risk of tire pinch and increases strength due to the bracing provided by the additional wall. What does this mean for your ride? It encourages riders to charge terrain with maximum confidence and minimal worry thanks to the Hollow Bead Wall concept. Paired with a 32 spoke system chassis propelled by the Hydra hub's near instant .52° engagement, riders will revel in unrivaled control in the tech with an open invitation to put the power down at any moment. When the dust settles, Enduro 300 wheelset emerges as a true best in class contender for aggressive riders. - High quality aluminum alloy rim with weatherproof sublimated graphics, tubeless friendly bead shelf, and a proprietary profile to keep dents at bay - Versatile, strong and stiff 32h Mountain System chassis forms the foundation for the most capable wheelset - 690 P.O.E. Hydra 6-pawl freehub body engages every .52 degrees, yielding telepathic control - Hollow Bead Wall promotes increased pinch flat protection and impact resistance - Approved for use on Class 1 E-Bikes - 2-Year Warranty

Rapid Red 3 wheels are perfectly at home on the road or mixed terrain surfaces. Constructed from a CNC machined aluminum section that significantly reduces weight and increases strength. The 24 mm internal rim width is ideal for current frames designed around larger wheels and tires. - 24 mm internal width aluminum rim with 2-Way Fit™ technology for clincher or tubeless set ups - 2:1 spoke ratio with disc brake hubs - ASTM 2 riding conditions