Cranksets

Performance Creativity For the aficionados and the geeks and the fanboys and the freaks, a custom-painted crank is a place of pride. A painted hammer. A beautiful ax. Troy Lee and his team channeled the future of camo to design these cranks, and the future in the stiff, durable world of SRAM cranks is looking exceptionally bright. Specifications: - Speeds: 11/12 - BB Compatibility: DUB:BSA73, PF89.5, PF92, PF30 MTB73, BB30 MTB73, BSA MTB68SP - Chainring Size: 32 - Crank Arm Length: 165mm, 170mm, 175mm - Chainline: 52.0mm - BB Spindle Interface: DUB - Chainring Material: Aluminum - Guard: No Guard - Bolt Circle Diameter (BCD: Direct Mount (DM) - Crank Arm Material: Carbon

The STYLO Carbon Fat Bike DUB crankset is for riders who feel most at home when riding endless single track. Built tough, to handle lines through rock gardens and trail, the STYLO Carbon is strong, stiff and light. Featuring SRAM’s DUB technology, this design simplifies the relationship of the spindle to the bottom bracket. DUB-powered cranksets mean simplicity, compatibility, and durability. - SRAM DUB technology creates a lighter, stiffer and stronger crankset - Proprietary carbon layup technology - Included direct mount X-SYNC 2 chainring provides significantly quieter performance, with better mud clearing and durability - Chainring is designed specifically for Eagle chains and drivetrains - DUB compatible bottom bracket sold separately - Fat bike frame compatible - BB Included: No - Chainring BCD: SRAM Direct Mount - Crank Intended Use: Mountain - Number of Chainrings: Single - Drivetrain Speeds: 12, 11, 10 - Spindle Interface Type: SRAM DUB - Chainline/Hub Compatibility: 190/197 Hubs

The STYLO Carbon DUB crankset is for riders who feel most at home when riding endless single track. Built tough, to handle lines through rock gardens and trail, the new STYLO Carbon is strong, stiff and light. Featuring SRAM’s DUB technology, this design simplifies the relationship of the spindle to the bottom bracket. DUB-powered cranksets mean simplicity, compatibility and durability. - SRAM DUB technology creates a lighter, stiffer and stronger crankset - Proprietary carbon layup technology - Included direct mount X-SYNC 2 chainring provides significantly quieter performance, with better mud clearing and durability - Chainring is designed specifically for Eagle chains and drivetrains - DUB compatible bottom bracket sold separately - Fully compatible with any 1x drivetrain - BB Included: No - Chainring BCD: Sram Direct Mount - Crank Intended Use: Mountain - Number of Chainrings: Single - Drivetrain Speeds: 12, 11, 10 - Spindle Interface Type: SRAM DUB - Chainline/Hub Compatibility: 135/142 MTB Hubs

- 8-speed Road crankset - Square taper interface - Does not include BB - Bolt pattern: 110 x 5-bolt - Crank length: 170mm

• Singlespeed crankset • Alloy crankarms w/ solid steel chainring • Square taper interface • Does not include BB

•Single speed crankset •Forged alloy crank arms •Square taper interface •Does not include BB •44-tooth chainring •Double chainring guard

• 6/7/8-speed MTB crankset • Square taper interface • Alloy arms • Replaceable steel chainrings • Does not include BB • Bolt Pattern: 104/64 x 4-bolt

- Steel chainring with forged alloy crank arms and double chainguard - Compatible with 3/32" chains - 45mm chainline - Spindle Type: 118 SQR JIS

• Forged steel • Square taper • Compatible with 9/16" pedals • Pairs • Cotterless

- Steel chainring with forged alloy crank arms and chainguard - Compatible with 3/32" chains - Riveted chainring - Spindle Type: 118 SQR JIS - Bolt Pattern: Riveted - Speed: 1

- Compatible with 1/2" pedals - Forged steel - 24 TPI

• 8-speed Road crankset • Square taper interface • Does not include BB • 1300 grams

• 6/7/8-speed MTB crankset • Square taper interface • Coated steel arms/riveted steel chainrings • Includes plastic chainguard • Does not include BB • Weight: 1465 grams

The Saker Cranks are designed to be an affordable 3-pc crank with tubular chromoly arms that have a single pinch bolt design. It uses a 19mm chromoly spindle with 8 splines. The cranks include a 19mm Mid BB with spacers. RHD/LHD compatible - Tubular chromoly 3-piece - RHD/LHD compatible - Includes mid-sized bottom bracket

- Premium quality Keirin Track Racing NJS certified forged aluminum arms in a Sugino display box - Chainring sold separately - BB sold separately - Bolt Diameter: 144mm - 535g

Stolen Mob V4 cranks are left side and right side drive compatible, featuring a 3-pc design with a unique "Team-Style" crank arm shape. - Crank is made from 4130 tubular chromoly - The heat-treated 19mm, 8-spline spindle provides strength - 2 flush mount spindle bolts - Single pinch bolt design reduces weight - Spindle Material: Steel - Crank Arm Material: Steel - Drive Side Compatibility: Right and Left Hand Drive - Crankset Style: 3-Piece - BB Included: No

Kick your mountain biking into gear with the performance and durability of an Alivio MT210 crankset. - High-quality anodized finish - Precise and reliable shifting

Shimano's Alivio mountain crankset offers smooth and precise shifting performance for trail focused riders. Its 2-piece design and narrow Q-factor provide quality, comfortable MTB riding.

Claris R2000 series cranks are clean and stylish; an ideal option for long touring, town cruising, and daily commuting. - Hyperglide technology ensures smooth and reliable shifting - 4-gear arm crank design - Includes crank arm fixing bolt - 150mm Q-factor

Claris R2000 series cranks are clean and stylish; an ideal option for long touring, town cruising, and daily commuting. - Hyperglide technology ensures smooth and reliable shifting - 4-gear arm crank design - Includes crank arm fixing bolt

Shimano's Deore Crankset features efficiency and fast shifting to let you make the most out of the trails. Its smooth shifting rhythm maintains speed and acceleration over challenging terrain and provides optimized gear combinations and ratios for trail riding. Features: - HOLLOWTECH II Crankset (3x10-speed) - Efficient power transfer - HOLLOWTECH II crank arm with 4-arm construction - Composite chainring - Close step tooth profile for smooth shifting - Bottom Bracket compatibility: SM-BB52/BB-MT500-PA - Chain Line: 50

- Material: Aluminum - Chain Compatibility: HG 7-8 speed - Pedal Spindle: 9/16'' - Bottom Bracket: Not included - BB-UN26 or BB-UN55 110mm for double or 113mm for triple - Alloy outer chainring

- 2-PIECE CRANKSET for 142 mm or 148 mm O.L.D. frames - DYNAMIC CHAIN ENGAGEMENT+ improves chain engagement and retention - Q-factor 172 mm - Direct mount chainring - Chain Line 52 mm - 1x12-speed

- 2-PIECE CRANKSET for 148 mm O.L.D. frames - DYNAMIC CHAIN ENGAGEMENT+ improves chain engagement and retention - Q-factor 178 mm - Direct mount chainring - Chain Line 55 mm - 1x12-speed

- Non-series FC-MT210-2 / MT210-B2 double crankset for 2 x 9 speed drivetrains - Shimano's most affordable, outboard bearing Hollowtech II cranks - Simpler and faster shifting than triple cranks - 22-36 gearing, perfect for trail riding - Chainline: 48.8mm chainline (FC-MT210-2), for 135mm/142mm frames, or 51.8mm (FC-MT210-B2), for Boost 141mm/148mm frames - Aluminum crank arms - Highly durable riveted steel chainrings - Requires SM-BB52 bottom bracket, not included

- FC-TY501-2 double crankset for 7 and 8 speed drivetrains - Simpler and faster shifting than triple cranks - 46-30 gearing, ideal for gravel, adventure, commuting & light touring - 48.8mm chainline, designed for 135mm QR and 142mm thru-axle frames - Crank bolts included - Requires LL123 square taper bottom bracket

Shimano's new FC-RX600-10 crankset balances weight and efficiency for mixed-terrain riding. Gearing options cater to the specific demands of gravel riding and to provide tighter gear steps for maintaining pedaling cadence. The 2x10-speed crank is available in a 46-30T chainring combination. - Wider gear range for long tours or unknown terrain - Optimum gearing for mixed terrains and riding styles - Gear combination: 46-30T

Shimano's new FC-RX810-2 crank balances weight and efficiency for mixed-terrain riding. Gearing options cater for the specific demands of gravel riding and to maintain tighter gear steps for maintaining pedaling rhythm. The 2x11-speed crank is available in a 48-31T, 40T, and 42T chainring combination and 170, 172.5, and 175mm crank arm lengths. - Gravel gear ratios preserve riding rhythm over rough surfaces with wider tires - Optimum gearing for mixed terrains and riding styles - Wide-range double - Gear combinations: 48-31T, 40T, 42T

The RS510 crankset features a 4-arm design that's light and stiff, providing high performance on a low budget. - For 11-speed drivetrains - Compatible with frames of O.L.D. 135 mm and 410 mm chainstay length - Affordable and high-end style crankset

- SLX M7100 12 speed crankset - Fits Boost and non-Boost MTB - Hollow forged crank maximizes power transfer while limiting weight - Premium-looking two tone finish - Direct mount chainring type - Q-factor : 172mm - Chainline : 52mm

- SLX M7120 12 speed crankset - Fits 148mm Boost MTB frames - Greater clearance allows wider tires than FC-M7100 - Hollow forged crank maximizes power transfer while limiting weight - Premium-looking two tone finish - Direct mount chainring type - Q-factor : 178mm - Chainline : 55mm

Shimano Tourney FC-A073 crankset - 7/8-Speed compatible - SG-X Steel chainrings - Square taper JIS - Fixing bolts not included - Chainguard model

- XT M8100 12 speed crankset - Fits Boost and non-Boost MTB - Hollow forged crank maximizes power transfer while limiting weight - Direct mount chainring type - Chainline : 52mm

- XT M8120 12 speed crankset - Fits 148mm Boost MTB frames - Greater clearance allows wider tires than FC-M8100 - Hollow forged crank maximizes power transfer while limiting weight - Direct mount chainring type (TL-FC41 tool included) - Q-factor : 178mm - Chainline : 55mm

- XT M8130 12 speed crankset - Fits 157mm SuperBoost MTB frames - Hollow forged crank maximizes power transfer while limiting weight - Direct mount chainring type - Q-factor : 181mm - Chainline : 56.5mm

Shimano XTR M9100 cranks feature a lightweight and rigid design thanks to Hollowtech II crank construction. Chainrings can be easily exchanged with the direct mount system and one key release. - Single front chainring set up (chainring not included) - Gear tooth profile designed for MTB riding usage - Crank can be exchanged between single and double front chainring set ups - 162mm Q-Factor

Shimano XTR M9100 cranks feature a lightweight and rigid design thanks to Hollowtech II crank construction. Chainrings can be easily exchanged with the direct mount system and one key release. - Single front chainring set up (chainring not included) - Gear tooth profile designed for MTB riding usage - Crank can be exchanged between single and double front chainring set ups - 168mm Q-Factor

Forget front derailleurs; SRAM's Force 1 Crankset brings a game-changing upgrade in performance and reliability to cyclocross, road, and other 700c disciplines. Force 1 combines the durability, simplicity and efficiency that SRAM is known for with their 1x mountain technology. - Single-ring drivetrain simplifies functionality - SRAM X-Sync: wide-tooth, narrow-tooth chainring technology provides maximum chain control - Chainrings available in 42, 50 (110 BCD), and 52 (130BCD) teeth to conquer every course from sand dunes to gravel-road assaults - Unidirectional carbon crank arm matched to a forged aluminum spider for lightweight and durability - Weight 679g-24mm, 172.5mm, 50T, no BB - Bottom bracket not included

SRAM's Force 22 Crankset uses unidirectional carbon arms with a forged aluminum spider and integrated bottom-bracket axle to ensure top-notch stiffness for awesome power transfer and exceptionally low weights. Experience phenomenal front shifting with SRAM's X Glide R chainrings that start out as 5mm-thick aluminum plates and then precision machined to eliminate all unessential material while retaining extreme stiffness. With so much great technology and 11-speed compatibility, they're a force to be reckoned with.

Some riders test their limits more than others. For these riders, the GX Eagle DUB crankset allows them to go all-in, every day they ride. The best aluminum crankset we make, engineered to deliver consistent performance every ride. Featuring our X-SYNC 2 tooth profile chainring for complete chain control, each tooth's thickness is toleranced and controlled to work seamlessly with the chain's inner and outer links. DUB technology's patented spindle design and bottom bracket provide a uniform approach to fitment, better sealing, and forward and backward compatibility. Simply put, the forged aluminum GX Eagle DUB crankset is the no-frills choice of riders who know. - Our best aluminum crankset - Direct mount interface compatible with chainrings across the entire Eagle Ecosystem - Master GX colorway as part of Eagle Colorsystem—pairs with all cassettes and chains, from Black to Gold to Rainbow to HardChrome and all-new Copper

The SRAM carbon GX Eagle crankset delivers consistent performance every time out. Featuring SRAM's X-SYNC 2 tooth profile chainring, the Carbon GX crankset is engineered for complete chain control. Each tooth's thickness is precisely toleranced and controlled to work seamlessly with the chain's inner and outer links. DUB technology features a better-engineered bottom bracket and a new spindle design. Together, these allow for a more uniform approach to bottom bracket fitment, better sealing against contamination, and forward and backward compatibility. Now everyone can benefit from a new measure of durability.

The SRAM GX Eagle DUB Fat Bike crankset delivers consistent performance every time out. Now featuring SRAM’s DUB technology, this design simplifies the relationship of the spindle to the bottom bracket. Optimized 7000-series forged aluminum arms support the X-SYNC 2 chainring to provide complete chain control. Now everyone can benefit from a new measure of durability. - SRAM DUB technology creates a lighter, stiffer, and stronger crankset - Optimized 7000-series forged aluminum arms - Included direct mount X-SYNC 2 chainring provides significantly quieter performance, with better mud clearing and durability - Chainring is designed specifically for Eagle chains and drivetrains - DUB-compatible bottom bracket sold separately - 66.5mm chainline

The SRAM GX Eagle DUB Fat Bike crankset delivers consistent performance every time out. Now featuring SRAM’s DUB technology, this design simplifies the relationship of the spindle to the bottom bracket. Optimized 7000-series forged aluminum arms support the X-SYNC 2 chainring to provide complete chain control. Now everyone can benefit from a new measure of durability. - SRAM DUB technology creates a lighter, stiffer, and stronger crankset - Optimized 7000-series forged aluminum arms - Included direct mount X-SYNC 2 chainring provides significantly quieter performance, with better mud clearing and durability - Chainring is designed specifically for Eagle chains and drivetrains - DUB compatible bottom bracket sold separately - 76.5mm chainline

The SRAM GX Eagle DUB crankset delivers consistent performance every time out. Featuring SRAM’s DUB technology, this design simplifies the relationship of the spindle to the bottom bracket. Optimized 7000-series forged aluminum arms support the X-SYNC 2 chainring to provide complete chain control. Now everyone can benefit from a new measure of durability. - SRAM DUB technology creates a lighter, stiffer, and stronger crankset - Optimized 7000-series forged aluminum arms - Included direct mount X-SYNC 2 chainring provides significantly quieter performance, with better mud clearing and durability - Chainring is designed specifically for Eagle chains and drivetrains - DUB compatible bottom bracket sold separately - 56.5mm chainline

SRAM's GX 2x10 Crankset w/All Mountain Chainguard delivers consistent performance every time out. Featuring SRAM’s X-GLIDE chainrings, the GX crankset is engineered for 2x10 shifting performance. Flawless shifting means you’ll never again compromise your speed and power in unpredictable off-road terrain. No more missed shifts. X-GLIDE puts you in the right gear, right now. - 6000 series AL - X-GLIDE 2x10 shifting technology • Weight: 799g (GXP, 175mm, 36/22T) • Chainguard included, but not shown

The SRAM NX crankset delivers Eagle styling and performance to the newest addition to the Eagle ecosystem. Designed for SRAM's X-SYNC 2 chainrings, the NX crankset is engineered for complete chain control—each tooth's profile is precisely engineered to work quietly, efficiently, and securely with the Eagle chain's inner and outer links. DUB technology features a better-engineered bottom bracket and a new spindle design, which together allows for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility. Now everyone can benefit from a new measure of performance and durability. - 6000 series forged aluminum arms - 52.0mm chainline

The SRAM NX crankset delivers Eagle styling and performance to the newest addition to the Eagle ecosystem. Designed for SRAM's X-SYNC 2 chainrings, the NX crankset is engineered for complete chain control—each tooth's profile is precisely engineered to work quietly, efficiently, and securely with the Eagle chain's inner and outer links. DUB technology features a better-engineered bottom bracket and a new spindle design, which together allows for a more uniform approach to bottom bracket fitment, better sealing against contamination and forward and backward compatibility. Now everyone can benefit from a new measure of performance and durability. - 6000 series forged aluminum arms - 66.5mm chainline

The SRAM RED 1 AXS crankset features exceptional 1x drivetrain design. It provides the simplicity and tighter gearing range that is well-suited for road racing and riding in flatter terrain, where a wide range would go unused. The crankset is designed specifically for electronic shifting and can be upgraded to a power meter. - Single-ring drivetrain simplifies functionality and reduces weight - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control

The SRAM RED 1 AXS crankset features exceptional 1x drivetrain design. It provides the simplicity and tighter gearing range that is well-suited for road racing and riding in flatter terrain, where a wide range would go unused. The crankset is designed specifically for electronic shifting and can be upgraded to a power meter. - Single-ring drivetrain simplifies functionality and reduces weight - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control

In certain disciplines, the single-ring drivetrain reigns supreme. Championing simplicity, strength and durability, the SRAM RED 1 AXS power meter meets the demands of triathletes, time trialists and cyclocross racers. The power meter features improved aerodynamics thanks to direct mount aero chainrings with fully integrated power, and the tighter gearing range is perfect for racing and flatter terrains. - Single-ring drivetrain simplifies functionality - 48T and 50T variants have fully integrated power into a direct mount aero chainring - 36-46T variants have spider-based power - Chainrings can be easily changed without requiring recalibration of the power meter - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - DUB bottom bracket adds durability and simplicity - Non-aero chainrings can be installed with a single tool, making gearing changes a breeze - Bottom bracket not included - BB Compatibility: All SRAM Road DUB BBs - BB Spindle Interface: DUB - Chainring material: Aluminum - Crank arm material: Carbon - Power Meter Type: ANT+ and BLE

Triathlon. Time Trial. Cyclocross. Some disciplines are made for 1x. And while SRAM's X-Range 2x set up has integrated much of the simplicity of a 1x system, there are still times when a single ring is best. The SRAM RED 1 crankset offers the most demanding racers the right mix of features—aerodynamics, durability, and simplicity. - Single-ring drivetrain simplifies functionality and reduces weight - 48 and 50t variants feature direct mount aero chainrings for better aerodynamics - Non-aero chainrings can be installed with a single tool, making gearing changes a breeze - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - Laser-etched chainring finish is more durable - DUB bottom bracket adds durability and simplicity - Can be upgraded to a power meter - Version: D1

The SRAM RED AXS Crank Arm Assembly features hollow carbon Exogram crank arms for a lightweight, strong, and elegant crank. It can be paired with any SRAM AXS spider or integrated chainring, with or without power. - The 8-bolt interface is compatible with power and non-power AXS spiders and integrated chainrings - Not compatible with SRAM's 3-bolt direct mount interface - Hollow Exogram carbon arms - Spider and chainrings sold separately - DUB spindle interface - Compatible with all SRAM Road DUB bottom brackets - Number of Chainrings: No Rings, No Spider Included - Crank Intended Use: Road, Tri, Cyclocross - Pedal Spindle: 9/16" - Spindle Interface Type: SRAM DUB - Chainring BCD: Direct Mount SRAM - BB Included: No

The SRAM RED AXS power meter breaks with tradition — and breaks through to new levels of performance. SRAM reengineered road gearing: reducing front chainring size and adding more range to the rear cassette. They also maintained a 13-tooth delta on all chainring pairs, ensuring precise shifting for any setup. This results in more useful gearing and better shifting across all configurations. These power meters are also designed with Quarq's premier DZero power measurement technology fully integrated into the crankset. Welcome to the pinnacle of the power meter. - X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - Integrated power measurement - Power meter is fully integrated into the chainring set for lighter weight - Power readings are accurate within +/-1.5% and aren't affected by climate conditions during a ride - Power balance measures left and right legs separately - Improved front shifting performance for crisp and accurate front shifts - Unique chainring shape results in a lighter weight, stiffer, more durable crankset - Integrated chainring design significantly reduces weight - DUB bottom bracket adds durability, simplicity and broad compatibility - Speeds: 12 - BB Compatibility: All SRAM Road DUB BBs - BB Spindle Interface: DUB - Chainring material: Aluminum - Crank arm material: Carbon - Power Meter Type: ANT+ and BLE - Bottom bracket not included

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. - An elegant, integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Wide chainline crankset for bikes with the widest gravel tires

The wider stance of the arms and chainrings provides clearance for extra wide tires, giving you the option to explore new, more challenging routes. - Wide chainline crankset for bikes with up to 700x45c or 27.5x2.1" tire widths (43/30T chainrings only) - DUB bottom bracket adds durability and simplicity - Longer DUB crank spindle accommodates both Road- and MTB-width bottom bracket standards for unmatched cross-compatibility across brands - Requires wide front derailleur - BB not included

Designed to handle whatever you can throw at it. Aluminum crankarms in a wide range of lengths and the DUB bottom bracket system mean the Rival crankset will keep spinning, no matter what. A tight and consistent 13-tooth gap between chainrings makes for accurate and dependable shifting. - X-Range gearing technology gives you more range and a smoother gear progression, so you're always in the right gear - Crisp and accurate front shifts - DUB bottom bracket adds durability, simplicity, and virtually universal frame compatibility - BB not included

SRAM's S300 1.1 single-speed Crankset combines their stiff 7075-aluminum chainring with their lightweight 6061-aluminum forged arms. The high-profile teeth are compatible with 9- and 10-speed chains, and the stout spindle efficiently transfers your power. Plus, GXP bottom bracket cups are included.

SRAM's S600 3.0 Crankset features forged arms for increased strength and reliability paired with smooth shifting chainrings for the best combination of looks, performance and price.

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. - An elegant,integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - BB not included

Power every ride. We've taken the reliability, elegance, and features of Quarq's legendary crank-based power meter and dropped the barrier to entry once again. This new power meter platform is entirely contained within the DUB spindle for clean integration that fits more bikes than ever. - An elegant,integrated design - DUB-PWR spindle-based unit measures left-side power to calculate total watts - Proven Quarq reliability and accuracy - Long battery life (400+ hours) to power a season of rides - User-replaceable lithium AAA battery - DUB bottom bracket adds durability and simplicity - Waterproof (IPX7 waterproof to 1 meter for 30 minutes) - Lightweight (less than 40g heavier than standard crankset) - Wide chainline crankset for bikes with up to 700x45c or 27.5x2.1" tire widths (43/30T chainrings only) - BB not included