Cranksets

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: 170/177 Hubs

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: 141/148 Boost Hubs

Sharpened For Speed We designed the new STYLO Carbon crankset for riders who feel most at home when riding endless single track. This is a completely new crankset, employing our proprietary layup technology. Built tough to handle lines through rock gardens and trail, the new STYLO Carbon is strong, stiff, and light. Combined with the new SRAM Eagle direct-mount chainrings, it's a compatible crankset to the Eagle drivetrain. 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. Features: - Proprietary carbon layup technology. - Fully compatible with any 1x drivetrain. - DUB technology features a uniform approach to bottom bracket fitment, better sealing against contamination, and is forward and backward compatible. - Direct-mount ring. - ISO 4210 compliant. See Declaration of Conformity for details. Specifications: - Speeds: 11/12 - BB Compatibility: DUB BSA MTB 100, DUB PF MTB 121, DUB BSA73,DUB PF89.5,DUB PF92,DUB PF30 MTB73,DUB BB30 MTB73, DUB:BSA73, PF89.5, PF92, PF30 MTB73, BB30 MTB73, BSA MTB68SP - Chainring Size: 30, 32, 34 - Crank Arm Length: 170mm, 175mm - Chainline: 49.0mm, 52.0mm, 55.0mm, 66.5mm, 76.5mm - BB Spindle Interface: DUB - Chainring Material: Aluminum - Guard: No Guard - Bolt Circle Diameter (BCD): Direct Mount (DM) - Crank Arm Material: Carbon

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

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

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 - Drive Side Compatibility: Right and Left Hand Drive - Crank Arm Material: Steel - Crankset Style: 3-Piece - BB Included: No

The Talon V2 Crank features a heat-treated 4130 chromoly spindle and sprocket boss for precision sprocket alignment. - RHD/LHD compatible - Spindle: 19mm, 48-spline, heat-treated Chromoly - Spindle Bolts: Flush M8 x 1.0 (6mm allen key) - Sprocket Bolt: M10 x 1.5 (6mm allen key) - Weight: 35-ounces

This 2-piece crankset with chain guard is perfect for city and commuter bikes. - Chainring: 45T, 42T, 39T - Single or double chainguard integrated design - Chain compatibility: Super Narrow HG for 9-speed, HG 8-speed (1/2 inch x 3/32 inch)

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

The Shimano Alivio FC-T4010 crankset is an excellent replacement for your 9-speed triple chainring drivetrain. - Chainguard included - For Octalink V2 bottom brackets

Shimano Altus M311 cranksets provide durability and reliable shifting for triple chainring drivetrains. - Hyperdrive SG-X chainrings - 7/8-speed compatible - Spindle interface type: Square Taper JIS

Shimano Acera FC-M361 cranksets feature sturdy construction, reliable shifting, and replaceable chainrings. - Spindle Interface type: Square Taper JIS

The Shimano FC-M371 crankset for square bottom brackets features a rigid 2-piece construction and Hyperdrive SG-X chainrings. - Chain guard included - 9-speed

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. The smooth shifting rhythm allows you to maintain speed and acceleration over challenging terrain. Hollowtech II technology provides the best balance of stiffness, strength, weight, and rotating performance. Features: - Efficient power transfer - HOLLOWTECH II crank arm with 4-arm construction - Composite chainring - Optimized gear combinations and ratios for trail riding - Close step tooth profile for smooth shifting - Stable shifting performance in any suspension position - Single spike structure for stable shifting - Bottom Bracket compatibility: SM-BB52/BB-MT500-PA - Chain Line: 51,8

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

- Various choices for bike and riding style - More durable chainwheel teeth - New 3D composite chain ring's teeth composition is optimized for each chainwheel load out (1x11, 2x11 & 3x11) with steel driving gear teeth and aluminum support gears - Improved driving rigidity - Loose ratio gear combination for minimum shifting gap and maintaining rhythm - Enhanced chain retention - Better sealing and better rotation - Model Number : FC-M8000-2 - Series : DEORE XT - Cassette Compatibility : 11 - Bolt Circle Diameter : P.C.D. 96/64mm - Crank Arms : HOLLOWTECH II Technology - Bottom Bracket : BB-MT800 / BB-MT800-PA - Chain Line : 48.8mm - BB Shell Width : 68, 73mm

Shimano Dura-Ace Left Crank Arm. - Spindle Interface Type: Hollowtech II

The Shimano Dura-Ace FC-R9200 crank performs two vital functions; transferring your pedaling effort into the drivetrain and ensuring the fastest, most precise front shifting available. With HOLLOWTECH II crank arms to ensure light weight and Shimano's class-leading chainring designs, the FC-R9200 won't let you down. - Optimal balance of stiffness, strength, weight and rotational performance - HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting - 148mm Q-factor - 44.5mm chainline

Shimano's R9100 series crank arm achieves the ultimate in optimal power transfer. It does this through a broad Hollowtech II arm which sets the highest standards for stiffness and lightness. - Spindle Interface Type: Hollowtech II

- 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

- FC-M315-2 double crankset for 7 and 8 speed drivetrains - Simpler and faster shifting than triple cranks - 22-36 gearing, perfect for trail riding - 48.8mm chainline, designed for 135mm QR and 142mm thru-axle frames - Aluminum crank arms - Highly durable riveted steel chainrings - Crank bolts included - Requires LL123 square taper bottom bracket

- 2-PIECE CRANKSET for 135, 142 and 148 mm O.L.D. frames - Q-factor 178.5 mm - Chain Line 52 mm - Precise and reliable shifting for 1x10/11-speed

- 2-PIECE CRANKSET for 135, 142 and 148 mm O.L.D. frames - Q-factor 178.5 mm - Chain Line 52 mm - Precise and reliable shifting for 1x10/11-speed

- 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

- 2-PIECE CRANKSET for 157 mm O.L.D. frames - DYNAMIC CHAIN ENGAGEMENT+ improves chain engagement and retention - Q-factor 181 mm - Direct mount chainring - Chain Line 56.5 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

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

An attractive aluminum crank with hollow arms for lightweight, rigidity, and durability The newly designed crank arms offer an optimized balance between lightweight and efficiency. The crank, formed with hollow aluminum technology, is anodized with a beautiful gloss black anodized finish, giving it a luxurious look. The resin ribs on the back of the chainrings are SHIMANO 105's unique structural design that achieves both thorough weight reduction and crisp shifting performance. FEATURES - Optimal balance of stiffness, strength, weight and rotational performance - HOLLOWTECH II structure cuts weight yet maintains strength for better power transfer - Crank arm length: 160, 165, 170, 172.5, 175 mm - Gear combination: 50-34T, 52-36T - Q-factor: 148 mm

- 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

- Series: SORA - Crank Construction: 2-piece crank construction - Bottom Bracket: BB-RS500, BB-RS500-PB - Chain Line: 43.5 - 9-speed - Four-arm BCD

Shimano's Tiagra Front Chainwheel is sleek, balanced and consistent. The Tiagra 4700 series provides serious entry-level riding performance with trickle-down technology from the top shelf Dura Ace line. - Series: Tiagra 4700 - Crank Construction: 2-piece crank construction - Cassette Compatibility: 10-speed - Chain Compatibility: Series color - Bottom Bracket: BB-RS500 / BB-RS500-PB

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

Super strong and ultra durable, Shimano's ZEE Cranks are tailor-made for aggressive riders, DHers and dirt jumpers that don't have endorsement deals. They use a 2-piece design with solid aluminum arms as well as a steel axle and steel pedal inserts for longevity. Stiffness was put at a premium, so if you need to stomp on the pedals to get up to speed quickly, or if you're a Clydesdale who punishes lesser cranksets, ZEE has your back. It's 10-speed compatible and is equipped with a 36-tooth chainring. The bottom bracket is included, too.

Salt Plus Pro 48 cranks have curved trapeze-shaped crank arms and are made of heat-treated seamless chromoly. - Tubular chromoly arms (heat-treated), chromoly spindle - Curved trapeze shaped crank arms - Heat-treated seamless chromoly - Left & right side sprocket bolt boss - Includes bottom bracket - Bore: 19 - Spindle Material: Steel - Drive Side Compatibility: Right and Left Hand Drive - Crank Arm Material: Steel - Crankset Style: 3-Piece - BB Style: Mid - BB Included: Yes

- Chainrings Included: Yes - Number of Chainrings: Single - Pedal Spindle: 9/16" - Rings: 42-tooth

Lightweight, durable, stiff and designed specifically to work with Bosch and Brose mid-ship motors, SRAM's EX1 crankarms are purpose built for the high-torque E-MTB environment. - Proven SRAM technologies adapted for the demands of midship-motor E-MTBs - Compatible with Bosch, Brose and Yamaha bottom bracket interfaces - Arm Material: Aluminum - Colors: Black - Bottom Bracket Interface: ISIS

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

- Single-ring drivetrain simplifies functionality and reduces weight - Wide chainline for maximum tire and chainstay clearance - Direct mount chainring - SRAM X-SYNC wide-tooth, narrow-tooth chainring technology provides maximum chain control - DUB bottom bracket adds durability and simplicity

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.

Stunning Force AXS graphics on a carbon fiber arm: these crankarms are winners. Available in lengths from 165 to 177.5mm and in standard and Wide Q-factor so every rider can achieve their proper fit. The 8-bolt interface will fit any SRAM AXS spider or integrated chainring, with or without power. The light, stiff, and durable DUB spindle interface also fits nearly any frame. - 8-bolt interface compatible with power and non-power AXS spiders and integrated chainrings - DUB bottom bracket adds durability and simplicity - Carbon fiber arms with gloss finish

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.

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 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