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Cranksets

Origin8 Power Connection Adapter
$21.99
• 6061-T6 aluminum construction • Adapts 110 or 130 bcd 5-bolt chainrings to fit one-piece or three-piece single bolt cranks • Anodized finish • Made in the U.S.A.
Origin8 Thruster 1x Direct Mount Spider
$33.99 - $49.99
Forged AL6061-T6 alloy spiders for Origin8 Thruster Series modular cranksets - SRAM 3-bolt interface for crank arm mounting - Available in both single and double chainring configurations for MTB, Boost/Fat, and Road/Cross/Gravel applications - BCD: 104mm 4-Bolt - Type: 1x
Origin8 Thruster 2x Direct Mount Spider
$39.99 - $49.99
Forged AL6061-T6 alloy spiders for Origin8 Thruster Series modular cranksets and are available in both single and double chainring configurations for MTB, Boost/Fat, and Road/Cross/Gravel applications. - SRAM 3-bolt interface for crank arm mounting
Origin8 Alloy Crankarm Set
$57.99
Put the power down with Origin-8's Alloy Crankarm Set. Made of light and durable forged aluminum and for a single chainring and square-taper bottom bracket (both sold separately), these crankarms are great for your sweet urban rig or mountain bike.
Origin8 Triple Aluminum Crank Arms
$57.99
- Triple replacement crankarms - Cold Forged alloy construction - Great for Recumbent or Junior road rider applications - Does not include BB - 130/74mm bolt-circle diameter - 145mm crank arms
Origin8 Pro Pulsion Single Speed Crankset - 110mm BCD/5-Bolt
$63.99
Origin-8's Pro Pulsion Single Speed Crankset is made of light and durable forged aluminum with a 46-tooth stamped-aluminum chainring. It provide excellent stiffness and power transfer.
Origin8 Track/SS Crankset
$68.00 - $79.99
Origin-8's Track/SS Crankset is made of light and durable forged aluminum. It has a fine machined-aluminum 46-tooth chainring for super-smooth pedaling and comes in a variety of colors to make your bike the coolest ride on the block.
Origin8 Classic Sport Single Crankset - 130mm BCD/5-Bolt
$73.99
Origin-8's Classic Sport Single Crankset is made of light and durable forged aluminum and it has a stylish machined-aluminum 46-tooth chainring to make your bike the coolest ride on the block.
Origin8 Pro Pulsion Alloy Road Crankset - 130mm BCD/5-Bolt (53/39)
$79.99
Origin-8's Pro Pulsion Alloy Road Crankset is made of light and durable forged aluminum with 53-/39-tooth CNC-machined aluminum chainrings. This fine 9 speed-compatible crankset provides excellent power transfer and smooth shifting.
Origin8 Track/SS 3/32-inch Crankset
$79.99
- Single speed crankset - Forged AL6061-T6 alloy crankarms - Includes 46 tooth alloy 3/32" chainring - 42mm chainline with 103mm JIS BB - BCD: 130mm - Weight: 620g - Does not include JIS square taper BB
Origin8 Trackstar Crankset (46T, 1/8-inch Chainring)
$79.99
Origin-8's Trackstar Crankset is made of light and durable forged aluminum and features a stylish machined-aluminum 46-tooth 1/8-inch chainring for excellent power transfer on the road and track.
Origin8 Thruster Crank Arm Set
$119.99 - $149.99
- Forged AL6061-T6 alloy crank arms for Origin8 Thruster Series modular cranksets - SRAM 3-bolt interface for direct mount chainrings and spiders - 24mm integrated Chromoly spindle - Crank arm tip protectors included with MTB/Boost and Fat 100/120 crank arm sets
Pioneer Power Meter Upgrade Kit
$579.00
Power to the people! Add the Pioneer Power meter to your existing Shimano crank. Pioneer's crankset-based power meters are simply some of the best power-monitoring systems on the planet, and the Upgrade Kit gives you the chance to add it to your existing crankset. At the heart of the Pioneer Power Meter System are two streamlined strain gauge monitors that can detect the slightest tangent and radial force direction as power is applied to the crank arms. This proprietary system detects the amount and the direction of force at 12 different points in each pedaling stroke for each leg, and allows you to fine tune your pedaling to find race-winning form. The Pioneer Power Meter Installation Kit comes with everything you need to package and send your existing Shimano crank to Pioneer for professional installation and calibration. - Compatible with Shimano Dura-Ace 9000 or Ultegra 6800 (Right Side Cranks Only) - Compatible Crank-arm Lengths: 165, 167.5, 170, 172.5, 175, 177.5, 180mm - Fully Integrated Strain Gauge for force measurement - Easy connectivity with ANT+ compatible Cycle Computers - HDPower Metrics when connected to Pioneer Cycle Computers - Lightweight Sensor Only 40 grams
Pioneer Shimano Dura Ace 9000 Single Leg Power Meter
$629.99
Pioneer's Shimano Dura Ace 9000 Power Meter is a revolutionary power meter that attaches stealthily to the left crankarm. The Dura Ace 9000 left crank arm meter allows every rider power-based (also called watt-based) training performance, allowing you to fine-tune your pedaling to find race-winning form without breaking the bank. With advanced technology accurate to +/- 2%, ANT+ transmitting, active temperature compensation, and a mere 22 grams of weight, the Pioneer power meter is perfect for any cyclist. Additionally, installation is fast, simple, and clean with zero wires, magnets, or zip ties. If you find yourself addicted to the data and crave more, upgrade kits that retroactively add drive-side power are available (sold separately).
Problem Solvers Hex Crank Arm Fixing Bolt/Cap
$4.99
Problem Solvers Crank Arm Fixing Bolts - 8mm - Sold as a pair
Promax SQ-1 Crank Arms
$79.99
Promax SQ-1 Crank Arm sets more than cover your need for hard-to-find lengths and hard-to-miss colors. - BCD: 110mm - Weight: 25.2 oz.
Promax CF-2 Crank
$149.99
Promax's CF-2 BMX Crankset features cold-forged 6061-T6 aluminum arms, a 2-piece design, and included external bottom bracket. - BCD: 104mm - Spindle diameter: 24mm
Promax HF-2 Crank Set
$299.99
Promax HF-2 BMX Cranksets are Promax’s top-of-the-line crank offering. Hollow-forged from 6061-T6 aluminum, both crank arms are hollow so they are super stiff, yet lightweight. The crank arms spin on a beefy 24-millimeter spindle permanently fitted into the drive-side arm. The HF-2 is available in anodized red, blue, gold, and black in 170, 175, and 180mm lengths. Now also available in 172.5 and 177.5mm lengths in black only. - Bottom bracket sold separately - Pedal washers included - Meets or exceeds ENBMX standards - Chainline: 43mm - Q-Factor: 167mm - BCD: 104mm - Weight: 29.5 oz.
Quarq DFour Power Meter Spider
$779.00
When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the DFour measures power in the heart of the bicycle—the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DFour Spider represents the state of the art in power meter technology - The DFour Spider is a bolt-on upgrade for Shimano’s 11-speed Dura-Ace 9000, Ultegra 6800 and 105 5800 chainrings. - Bluetooth low energy technology and ANT+ wireless data transfer. - 10K Temperature Compensation. - Battery - CR2032, 200-hour battery life, change without tools. - OmniCal - swap chainrings without affecting accuracy. - IPX7 waterproof rating. - Accuracy within 1.5%
Quarq DZero Aluminum Power Meter Chassis BB30
$779.00
When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the new DZero measures power in the heart of the bicycle — the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DZero represents the state-of-the-art in power meter technology As Quarq’s next generation of power meters, the DZero combines 10 years of technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app. - 10K temperature compensation: Eliminates variables caused by heat and cold to provide an unwavering record of your performance through all conditions - Built to last: Features an IPX7 waterproof rating - Bluetooth low energy technology and ANT+ wireless data transfer - Battery: CR2032, 200-hour battery life, change without tools - OmniCal: swap chainrings without affecting accuracy - 2-year warranty - IPX7 waterproof rating - Accuracy within 1.5% - Bottom Bracket Compatibility: BB30 - Forged aluminum models do not work with BBright or BB386EVO bottom brackets
Quarq DZero Power Meter Spider for Specialized
$779.00
DZero is Quarq's next-generation power meter platform for those who live to be challenged, pushed, and tested in the toughest scenarios imaginable. Now Quarq has introduced a DZero spider designed to replace the factory spider on Specialized's S-Works carbon crankset. Quarq DZero for Specialized embodies 10 years of Quarq advances in power meter technology, plus new features such as dual Bluetooth low energy and ANT+ wireless data transfer, revised circuitry, a new strain gauge design and the Qalvin BLE app. You also get AxCad accelerometer cadence, the easy-to-replace CR2032 battery, an IPX7 waterproof rating and a 2-year warranty. Features & Benefits: - Bluetooth low energy technology and ANT+ wireless data transfer - AxCad – no cadence magnet required - 10K Temperature Compensation - Battery – CR2032, 200-hour battery life, change without tools - Power Balance - OmniCal – swap chainrings without affecting accuracy - 2-year warranty - IPX7 waterproof rating - Accuracy – within 1.5%, measuring both legs - Free firmware upgrades with the Qalvin app Essential Details: - Traditional 5-arm spider compatible with Specialized S-Works Carbon Road Crank Arms from 2013-Current. - Available in 130 BCD and 110 BCD. - Replaces the standard spider. - A Specialized lockring tool is required for installation.
Quarq DZero Carbon Power Meter Crankset
$1,079.00
When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the new DZero measures power in the heart of the bicycle—the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DZero represents the state of the art in power meter technology As Quarq’s next generation of power meters, the DZero combines 10 years of technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app and, for the carbon version, compatibility with BB386EVO bottom brackets. - 10K temperature compensation: Eliminates variables caused by heat and cold to provide an unwavering record of your performance through all conditions - Built to last: Features an IPX7 waterproof rating - Material: CNC Machined Aluminum Spider, Exogram Carbon Crank Arms - Accuracy: 1.5% - Bolt Circle Diameter: 130 BCD, 110 BCD - Q-Factor: 145mm - Wireless Technology: ANT+, Bluetooth low energy technology - Battery: CR2032, 200 hours of riding time - Weight: 578/559 grams (130/110 BCD) - Head Unit Compability: ANT+ and Bluetooth low energy technology compatible head units (available separately) - Compatibility: Traditional 5 bolt chainrings from most manufacturers. Hidden (HB) and Non-hidden Bolt (NHB) patterns. 10-speed, 11-speed, 1X and 2X. *Not compatible with Campagnolo chainrings
Quarq DFour Power Meter Crankset
$1,179.00
When Quarq set out to build their next-generation power meter, they wanted to build the best-performing power meter for every facet of cycling and triathlon, and for riders at every level. Like its Quarq brethren, the new DFour measures power in the heart of the bicycle — the crankset spider, scientifically proven to be the place for the most accurate measurement. With a new measurement circuit, revised strain gauge design, improved accuracy throughout the pedal stroke and software advances built into the Qalvin App, the DFour represents the state of the art in power meter technology. Every innovation in Quarq’s next-generation DZero platform is channeled into the DFour Power Meter Crankset. It embodies 10 years of Quarq technology advances with new features such as dual Bluetooth low energy and ANT+ wireless data transfer, the new Qalvin BLE app and compatibility with BB386EVO bottom brackets. - The DFour power meter is a bolt-on upgrade for Shimano’s 11-speed Dura-Ace 9000, Ultegra 6800 and 105 5800 drivetrains. - Must be paired with a compatible SRAM bottom bracket. - ELSA RS power meter owners can upgrade using the DFour Power Meter Spider. - Free firmware upgrades with the Qalvin app. - Compatible with BB30 bottom bracket. - BB30 versions ship with the spacers and wave washer required for BB386EVO installation.
Race Face Cinch Nylon Preloader Crank Assembly
$2.49
Replacement CINCH Preload Ring for non-driveside Race Face CINCH cranks
Race Face Chainring Bolt Pack
$2.54
Race Face aluminum chainring bolts for inner chainrings. Includes four 12.5mm bolts.
Race Face M12 bolt for Respond, Chester and Ride DH
$4.55
Race Face 12mm crank bolt/puller for Respond, Chester, and Ride DH cranksets.
Race Face M15 bolt for 2008+ Evolve and Ride
$4.55
Race Face 15mm crank bolt/puller for 2008 and newer Evolve and Ride cranksets.
Race Face Chainring Bolt Pack Set of 4 12.5mm Bolt/Nut
$4.99
Race Face steel chainring bolts. Includes four sets of 12mm bolts/nuts for inner and outer chainrings.
Race Face X-Type Spindle Spacer Kit XC/AM Cranks
$4.99
Replacement spindle spacers for Race Face X-Type XC/AM cranksets.
Race Face X-Type Spindle Spacer Kit FR/DH Cranks
$5.99
Replacement spindle spacers for Race Face X-Type FR/DH cranksets.
Race Face CINCH Puller Cap with Washer 18mm XC/AM
$6.99
Race Face CINCH Crank Puller • Puller cap for Cinch model Race Face cranks only, including Next SL, SixC and Turbine • Puller cap utilizes 16mm hex key • 26mm thread
Race Face Cinch Drive Side Crank Bolt
$7.99
Replacement crank bolt for RaceFace Cinch cranks.
Race Face 2008+ Next SL and 2012+ Atlas Crank Bolt/Puller
$8.99
Race Face crank bolt/puller for 2008 and newer Next SL cranks and 2012 and newer Atlas cranks.
Race Face Turbine/Next XC/SixC and 2008+ Deus Crank Bolt/Puller
$8.99
Replacement crank bolt/puller set for Race Face NEXT XC, SIXC, and 2088 and newer Deus cranks.
Race Face Alloy Crank Boot
$9.99
Trail riding can be tough on your gear. The ends of your alloy cranks can take a lot of abuse as the trail rushes underneath you and your bike. Protect your cranks from any damage with Race Face crank boots - now made in a smaller version to fit most alloy MTB cranks. Made from a durable Race Face proprietary plastic blend, leave no doubt and go with the originator in crank end protection. Wrap it up and protect the tips. Compatible with: - Race Face - Turbine Cinch - Atlas Cinch - Atlas (24mm Spindle) - Turbine (24mm Spindle) - Aeffect Cinch (175mm length ONLY) - Most other popular alloy MTB cranks (except some alloy DH cranksets)
Race Face CINCH Bolt with Washer 18mm XC/AM
$9.99
Race Face Cinch aluminum crank arm bolt. 18mm, fits XC/AM cranks.
Race Face Carbon Crank Boots
$9.99
Trail riding can be tough on your gear. The ends of your carbon cranks can take a lot of abuse as the trail rushes underneath you and your bike. Protect your cranks from any damage with Race Face crank boots. Made from a durable Race Face proprietary plastic blend, leave no doubt and go with the originator in crank end protection. Wrap it up and protect the tips! Compatible with: - Race Face - Next SL Cinch (G3) - Sixc Cinch - Chester - Respond - Next/Next SL (24mm Spindle) - Sixc (24mm Spindle) - Most other popular carbon MTB cranks and assorted alloy DH cranks
Race Face Next SL G4 Crank Boots
$9.99
Trail riding can be tough on your gear. The ends of your Next SL G4 cranks can take a lot of abuse as the trail rushes underneath you and your bike. Protect your cranks from any damage with Race Face crank boots. Made from a durable Race Face proprietary plastic blend, leave no doubt and go with the originator in crank end protection. Wrap it up and protect the tips!
Race Face Torx Chainring Bolt/Nut Pack (Double Ring)
$10.99
Race Face aluminum Torx chainring bolt/nut set for double and triple chainrings. Includes four bolt sets.
Race Face Torx Chainring Bolt/Nut Pack (Triple Ring)
$10.99
Race Face aluminum Torx chainring nut/bolt set for triple chainrings. Includes four nut/bolt sets.
Race Face Crank Arm Outer Tab Spacers (Set of 4)
$11.99
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
Race Face Cinch Crank Bolt/Puller Cap
$12.00
Replacement crank bolt and puller cap set for Race Face Cinch cranksets.
Race Face Cinch Direct Mount Spider
$59.99
Race Face direct-mount chainring spider for Cinch ranksets.
Race Face CINCH Spindle Kit 30mm
$79.99 - $89.99
Spindle and hardware kit for Race Face CINCH MTB and fatbike cranks.
Race Face Aeffect E-bike Crank Arms
$89.99
Hearing the increasing popularity of e-bikes, Race Face has answered the call by modifying their rock-solid Aeffect crank arm specifically for e-bikes. With increased clearance, an optimized Q-factor, and a redesigned spline interface to maximize strength, the Aeffect E-bike Crank is the perfect upgrade for the discerning e-bike rider. - Compatible with all Bosch e-bike motors - Optimized Q-Factor - Extended spline interface for clearance of additional e-bike motor enclosures - 6066 T6 aluminum construction
Race Face SixC CINCH Spindle Kit
$89.99
For Race Face 30mm Cinch System cranks only. Use RF-2999 for 8mm to 16mm hex wrench adapter to remove spindle. - 30 x 136.5mm is for 120mm spaced BMX hubs and 68/73mm BBs - 30 x 151.5mm is for 150/157mm Hubs
Race Face Ride CINCH Crank Arm Set
$99.99
RaceFace Ride crank arms are forged from 6066 aluminum with aggressive styling for a high strength to weight ratio. - Bottom bracket sold separately
Race Face Aeffect CINCH Crank Arm Set
$119.99
The Race Face Aeffect crank is designed to handle aggressive trail riding at XC crank weight and an attractive price point. Features the CINCH system with its interchangeable spider options and a 24mm EXI interface spindle. - Crank arms forged from 6066 aluminum - Compatible with all CINCH direct mount rings and spiders to easily convert between existing chainring standards - Compatible with direct mount, 1x, 2x with - and without bash, and 3x configurations - 24mm EXI spindle compatible with Race Face X-Type bottom brackets or Hollowtech II compatible bottom brackets - CINCH removable spiders and direct mount rings utilize a 20-tooth ISIS cup BB tool for removal and installation - Bottom bracket sold separately
Race Face Turbine CINCH Crank Arm Set
$199.99
The Turbine continues setting the benchmark for performance aluminum cranks and cements the Turbine legacy. Featuring the proven Race Face Cinch System interface, the Turbine is an incredibly light & stiff performance crank-set for today's modern XC, trail and all-mountain rider. Imagine interchangeable spiders, limitless ring combinations, a 30mm alloy spindle and compatibility across all relevant frame standards. Interested in counting watts? The Turbine crankset is compatible with the new CINCH Power Meter. Quite possibly the most versatile crankset you will ever own. - Deep pocket forged and CNC machined aluminum crank arms - Compatible with the Race Face CINCH Power Meter - Removable spider offers the ability to convert between existing chainring standards while remaining flexible to future developments
Race Face Turbine Crank Arm Set
$199.99
The Turbine continues setting the benchmark for performance aluminum cranks and cements the Turbine legacy. Featuring the proven Race Face Cinch System interface, the Turbine is an incredibly light & stiff performance crankset for today's modern XC, trail, and all-mountain riders. Imagine interchangeable spiders, limitless ring combinations, a 30mm alloy spindle and compatibility across all relevant frame standards—it's quite possibly the most versatile crankset you will ever own. - Durable high gloss finish - Deep pocket forged and CNC machined to optimize stiffness - Industry standard 30mm spline interface - CNC machined from 7050 alloy - Compatible with the Race Face CINCH Power Meter - Removable spider offers the ability to convert between all existing chainring standards
Race Face Atlas Cinch Crank Arms
$209.99
The Race Face Atlas crank is the burliest alloy CINCH offering; designed to excel across many disciplines including trail, enduro, DH and freeride. Featuring the versatile CINCH interface for interchangeable spiders, limitless ring combinations, a 30mm alloy spindle and compatibility across all relevant frame standards. - Forged 7050 aluminum alloy arms - Bracing matrix at the back of the crank arms for added stiffness - Industry standard 30mm spline interface - Removable spider offers the ability to convert between existing chainring standards while remaining flexible to future developments - Interchangeable spindle option of the Cinch system allows you to use the same crankset with 68/73mm and 83mm frames, as well as the RF BMX spindle and spider - Spindle diameter: 30mm - Direct mount chainline: 48.5, 55mm (Flipped) - 2X Cinch spider chainline: 47mm - Boost 2X Cinch spider chainline:50mm - Weight: 690g
Race Face Turbine CINCH Fatbike Crank Arm Set
$239.99
The Race Face Turbine crank is designed as the performance-oriented alloy crank for XC, trail, and enduro applications. As the lightest alloy option in the CINCH lineup, the Turbine allows for interchangeable spiders, limitless ring combinations, a 30mm alloy spindle, and compatibility across all relevant frame standards. - Deep pocket forged and CNC machined aluminum crank arms - Bottom bracket sold separately
Race Face SixC Crankarms
$459.99
- The carbon crank arms are completely hollow with all unnecessary material being removed from the centre core - no internal aluminum spine - Industry standard 30mm spindle with Cinch spline interface. The spindle is CNC machined from a newly commercialized aluminum 'super alloy' that is 20% stronger than 7050 alloy (the alloy commonly used in this application) - Removable spider offers the ability to convert between existing chainring standards while remaining flexible to future developments - The interchangeable spindle option of the Cinch system allows you to use the same crankset with 68/73mm and 83mm frames
Race Face Next R Boost Crank Arm Set
$479.99
- Manufactured from UD Carbon with matte clearcoat - Handmade in Canada - SixC G2 Pedal Insert for increased Rally Factor - Burlier 7050 Spindle - Cinch technology for game-changing compatibility
Race Face Next R CINCH Crank Arm Set
$479.99
Pedal-heavy outings with rowdy all-mountain shredding can be very demanding on cranks. The Next R CINCH Crankset is light and strong where it matters most. Racing time or just rallying with friends, feel free to get a bit more sideways with Next R. - Manufactured from UD Carbon with matte clearcoat - Cinch technology for game-changing compatibility - Includes 30mm spindle, for 68/73mm BB shells
Race Face Next R CINCH Crank Arm Set
$479.99
Pedal-heavy outings with rowdy all-mountain shredding can be very demanding on cranks. The Next R CINCH Crankset is light and strong where it matters most. Racing time or just rallying with friends, feel free to get a bit more sideways with Next R. - Manufactured from UD Carbon with matte clearcoat - Cinch technology for game-changing compatibility - Includes 30mm spindle, for 68/73mm BB shells
Race Face Next R Crank Arm Set
$479.99
However you want to brand it, pedal-heavy outings with rowdy all-mountain shredding can be very demanding on cranks. That’s why Race Face took elements from their SixC designs and incorporated them with the best of Next to make an aggressive ruckus ready crank that can take you to the EWS podium. Light and strong where it matters most. Racing time or just rallying with friends, feel free to get a bit more sideways with Next R. - Manufactured from UD Carbon with matte clearcoat - Handmade in Canada - Downhill rated SixC G2 Pedal Insert for increased Rally Factor - Burlier 7050 alloy spindle - Cinch technology for game-changing compatibility
SR Suntour XCT Left Crank Arm
$15.00
SR Suntour's XCT is a replacement left crank arm for square or diamond taper-oriented cranks that features aluminum alloy construction.
SR Suntour XCM-T Crankset
$35.00
Suntour's XCM-T is a 9-speed triple crankset with melt forged alloy arms that comes in either square taper or Octalink bottom bracket options. - Steel chain rings - Forged alloy crank arms - 50mm chain line with a 113mm BB
SRAM Carbon Crank Arm Boot
$11.00
SRAM’s cranks are strong and tough, ready for any kind of ride. So it’s inevitable that pedal strikes and debris will chip away at the end of the crank. SRAM’s Carbon Crank Boot is an upgrade that combats the wear and tear that comes with hard riding. The boot protects the crank from surface damage and keeps the rider’s style perfectly intact.