- Optimum Power Transfer - Best Balance For Lighter Weight (-7G) And Efficiency - New Designed Crank Arm - Maintains High Rigidity And Reduces Weight - Hollowglide - 4-Arm Construction Crankset - Adapted For Race Specific Disc Brake System - Shorter Length Of Rear Center With O.L.D. 135mm - Redesign The Gear Teeth Profile To Fit Wider Gear Pitch - 50-34T/53-39T/54-42T/55-42T/52-36T - Iconic Design - Chain Line: 43.5

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

The Tourney TY501 crankset provides crisp, reliable shifting for your triple chainring drivetrain. - Precision indexed shifting - 8/7/6-speed compatible - 3 crank length specification available - Precise chain line control - Light and reliable shifting - Versatile performance - Wide compatibility with multiple components - Quick and precise assembly

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

Wheels Manufacturing BB30 Bottom Bracket Adaptor for GXP Cranks adapts 22/24mm Spindle Cranks (SRAM/TruVativ) to work on BB30 frames. Simply tap the adapters into the 6806 bearing in the BB shell, then install the spindle and cranks. Use Wheels Mfg Crank Spindle Spacers to adjust your chainline, or take up any side-to-side movement in your cranks. These spacers are machined from engineering-grade Delrin.

- Lower slider replacement parts for E-13 chainguides

These are 46mm inside diameter cup spacers that fit between a bottom bracket cup and the frame. Machined from 6061 aluminum and anodized black, these spacers can be used for a few different scenarios. First, when used with a Wheels Manufacturing GXP compatible bottom bracket, adding cup spacers between the non-drive side cup and the frame will move the chainrings on a GXP crank closer to the frame (reducing the chainline). Second, for Specialized road frames with the 61mm wide Carbon OSBB shell, you would place 3.5mm of spacers between each cup to effectively widen the BB shell to 68mm when used with non-Specialized cranks. One bag will properly space one 61mm wide Specialized OSBB shell to 68mm. Specs - Bottom Bracket/Frame Interface: Any 46mm ID BB shell: PF30, Specialized Carbon OSBB, 386EVO, 392EVO, BBRIGHT - Inside Diameter: 46.20mm - Outside Diameter: 52.00mm Bag Includes: - 2.5mm bottom bracket cup spacers (46mm ID) x 2 - 1.0mm bottom bracket cup spacers (46mm ID) x 4

The North Shore Billet 2×10 Spider replaces the stock chainring spider so that you can run smaller chainrings on SRAM XX1, X01, X1, X0, X9, X7, and GX cranks using GXP bottom brackets. With the NSB 2×10 Spider you can run a more traditional 22/32T or 24/34T combination. The NSB 2×10 Spider is designed to use any standard 64 / 104 BCD 9 speed chainring. The distance between the rings and the distance from the centre of the bottom bracket is the same as the 120 BCD spider so the set up is simple and the shifting is quick!

- 7075-T6 aluminum direct mount spider or lockring to fit Race Face Cinch system splined cranks - RF-3296 spider is required for running 2-ring setups with Boost (Race Face 1x Direct Mount rings work fine with Boost) - Mounts using a common Park BBT-22 tool

- 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-M8000-3 - Series : DEORE XT - Crank Construction : HOLLOWTECH II Technology - Cassette Compatibility : 11 - Bolt Circle Diameter : P.C.D. 96/64mm - Chain Line : 50mm - BB Shell Width : 68, 73mm

- 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

Wolf Tooth's CAMO stands for Chainline and Material Optimization. Available in various chainlines and spider configurations, CAMO spiders allow the use of previously unavailable chainring styles, materials, and chainlines in a lightweight, modular, and customizable package. These spiders are for use with the SRAM cranksets that have removable Direct Mount spiders and are only compatible with CAMO rings and bolts. Four different chainline options are available. The number and letter refer to the mm offset and direction from the mounting face to the centerline of the teeth: - M8 (minus 8mm - dished toward the frame): For 49mm chainline, used with GXP and long-spindle BB30 cranks. Designed for bikes with 135mm QR, 142mm thru axle, and some 148mm bikes. - M5 (minus 5mm - dished toward the frame): For 52mm chainline (Boost) - M2 (minus 2mm - dished toward the frame): For 49mm chainline on short-spindle BB30 cranks - P2 (plus 2mm - dished outward away from the frame): For fat bikes that have 190/197 rear spacing but use a 100mm-spindle crank. Can also be used to achieve a Boost chainline with a short-spindle BB30 crank.

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

Shimano XTR Left Crank Arms - Spindle Interface Type: Hollowtech II

Shimano's Dura-Ace Track Cranks transform every last watt into oval-scorching speed in the velodrome. These cranks set the bar for low weight and unmatched efficiency, with hollow forged aluminum crank arms and an Octalink bottom bracket (sold separately) for power transfer and acceleration that will blow you, and those trying to hold your wheel, away.

Race Face Crank Arm Tab Spacers • Spacers are used to protect the outer chainring tabs and enhance aesthetic when no outer ring or bashguard is used • Fits all Race Face cranksets • Use double bolts

Use these Wheels Manufacturing Crank Spindle Spacers to adjust chainline or bearing play in bottom brackets. - 24mm for Shimano Hollowtech II, FSA, Race Face EXI, SRAM GPX - 30mm for BB30, PF30, BB86, BB92 and other cranks with 30mm spindles - Machined engineering-grade Delrin - 10 spacers per bag

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)

The design of the four arm carbon fiber cranksets that so well identify the Super Record, Record and Chorus groupsets has also found its way into the fantastic Campagnolo Potenza 11 drivetrain, albeit in an aluminum construction. The Potenza crankset is made with both left and right crank arms in hollow forged aluminum to keep weight to a minimum while maintaining the same performance characteristics of its carbon fiber counterparts. Potenza’s four arm spider design makes for one single crankarm for all chainring options thanks to its unified bolt pattern which allows for all three chainring standards 53/39, 52/36 and 50/34 to be built upon the same crankset. Changing between compact and standard with the Potenza groupset is as easy as changing eight bolts and two chainrings. While the 4-arm bolt pattern offers advantages in terms of practicality, the Campy Tech Lab designed it primarily with performance characteristics in mind. The eight bolt pattern with a spider arm design that not only holds the chainring in place by way of the bolt but also supports the chainring and in doing so, increases system rigidity to the point of surpassing its direct competitors in laboratory tests. -Double standardized bolt circle diameter allows for use of standard, mid-compact and compact chainrings -Power-Torque system have drive-side bearing pre-installed. The non-drive bearing comes pre-installed in the bottom bracket cup -Power-Torque Plus system utilizes a self extracting crank bolt for easy disassembly -Requires use of Power-Torque bottom bracket cups -Features Campagnolo X.P.S.S. (eXtreme Performance Shifting System) featuring geometrically optimized chainring teeth. Optimized when mated to a full Campagnolo drivetrain -Power-Torque system uses a single piece axle fixed to the drive-side crank arm which allows for simplicity and a light weight and rigid axle

Wheels Manufacturing BBRIGHT BB30A and PF30A Adaptor for 24mm Spindle Cranks adapts 24mm spindle cranks (Shimano, FSA, etc.) to most BBRight frames. Compatible with 2011-2012 Cervelo models R3, R3 Team, S5, S5 Team, S5 VWD, R5ca and R5 VWD. - Also adapts Cannondale BB30a and PF30a frames to 24mm spindle cranks (Shimano, FSA, etc.). - Includes eight 0.7mm shims for fine-tuning chain line - Machined engineering-grade Delrin - 48g/pr

SRAM pioneered the 1x drivetrain and the SRAM Force 1 crankset evolves the innovation. Its lighter, stronger, and simpler chainrings can now be installed with a single tool. For cross, TT, tri, and crits, this is the king of 1x. - Single-ring drivetrain simplifies functionality and reduces weight - 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 - DUB bottom bracket adds durability and simplicity - Can be upgraded to a power meter

Many top features are packed into the Centaur crankset. The four-arm design allows for independent bolt circles, offering greater stiffness and structural integrity, and also provides additional versatility, as a single crankset is compatible with both standard compact and semi-compact chainrings. Add these features to the first aluminium crankset with an Ultra-Torque axle and the result is a component that is very similar to the top-of-the range part. - Requires use of Ultra-Torque bottom bracket cups-Double standardized bolt circle diameter allows for use of standard, mid-compact and compact chainrings - Ultra-Torque axles couple together in the middle of the BB shell via a Hirth Joint that self centers the crank. This results in a very light weight and stiff system that transfers power to the pedals without power loss - Features Campagnolo X.P.S.S. (eXtreme Performance Shifting System) featuring geometrically optimized chainring teeth. Optimized when mated to a full Campagnolo drivetrain - Ultra-Torque system have both drive and non-drive side bearings pre-installed

Sporting a supreme strength-to-weight ratio, Specialized's S-Works Carbon Mountain Crank Arms are super stiff and ready to propel you up the trails. With a self-extracting bolt for easy maintenance, these fourth-generation hollow crank arms feature an oversized aluminum spindle with a spline interface. It fits all frames with 73mm bottom bracket shell and includes all hardware for Pressfit 30.

Wheels Manufacturing 2.5mm Black Aluminum Bottom Bracket Spacers are for adjusting chainline or bearing play in English (BSA) or Italian threaded bottom brackets.

Shimano Ultegra R8000 crankset. - Optimized lightweight crank arm design produces excellent power transfer efficiency - Minimized weight without sacrificing stiffness - Hollowtech II - Rider tuned gear performance through various gear combinations - Possible to choose the best choice for ride - Redesigned FC for greater frame compatibility - Wider gear pitch increases clearance between chain and leading teeth to provide compatibility with frames with O.L.D. 135mm and 410mm chain stay length - Model Number : FC-R8000 - Series: Ultegra - Crank Construction: Hollowtech II - Crank Arm Length : 165, 170, 172.5, 175mm - Bottom Bracket : SM-BBR60/SM-BBR60-PB - Chain Line: 43.5 - Average Weight: 690 grams (53-39T), 681 grams (52-36T), 674 grams (50-34T), 668 grams (46-36T)

• Forged steel • 24 TPI

Ride anywhere 11-speed rider tuned gearing. The power to choose how and where you ride. Consistent shifting performance and enhanced chain management. Optimal balance of durability and lightweight. High efficient and precise shifting. These cranks are Boost compatible. - Enhanced chain retention. - Better sealing and better rotation. - Model Number : FC-M8000-2 - Series : DEORE XT - Cassette Compatibility : 11 - 4-Arm Chainrings : x - Chainring Sizes : 38-28T, 36-26T, 34-24T - Bolt Circle Diameter : P.C.D. 96/64mm - Crank Arm Length : 170mm/175mm - Chain Line : 51.8mm - BB Shell Width : 68, 73mm

absoluteBLACK Chainring Bolts are used to mount chainrings to the crank arms. Bolts are crafted from 7075 T6 aluminum and hard anodized for durability. - Bolts use a Torx T30 interface for greater reliability - Short bolts are used for the following chainrings: 104 BCD oval 34/36t, 104 BCD round 32/34/36/38t, and bashrings - Set of 5

The absoluteBLACK Oval Guide is designed specifically for oval chainrings, keeping your chain secure at every single crank position. This small and lightweight chain retention system provides extra insurance that the chain will remain securely located. - Fully compatible with oval chainrings - The adjustable 48-53mm chainline makes it compatible with most bike setups - Includes titanium hardware and spacers - Mounts to ISCG-05 mount - Weight: 22.2g

absoluteBLACK Chainring Bolts are used to mount chainrings to the crank arms. Bolts are crafted from 7075 T6 aluminum and hard anodized for durability. - Bolts use a Torx T30 interface for greater reliability - Long bolts are used for the following chainrings: 110 BCD 5-bolt outer and inner road oval, 130 BCD 5-bolt outer and inner road oval, 104 BCD oval 26/28/32t, 64 BCD round 26/28/30t, 94 BCD oval 30/32/34t, all CX round chainrings - Set of 5