Machined engineering-grade Delrin inserts for adapting bottom brackets to a different type of crankset spindle. - Adapts PF30 and Cannondale BB30-73A bottom brackets for use with Hollowtech II cranksets - Delrin adaptors fit between bearings and crank spindle - BB Shell Width (mm): 68 mm , 73 mm - Spindle Interface Type: Hollowtech II - BB/Frame Interface: PF30
Wheels Manufacturing BB30 Bottom Bracket Adaptor for Hollowtech II Cranks adapts 24mm Spindle Cranks (Shimano Hollowtech II, FSA, Race Face EXI, etc.) 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.
Machined aluminum spacers for freehubs. Great for fine tuning freewheel and cassette placement or improving chainline. Also good for bottom bracket spacing with BSA BB cups. - Inner Diameter: 35.0mm - Outer Diameter: 40.7mm - Material: Aluminum - Finish: Polished - Bags of 10
$25.99 - $29.99
• Singlespeed crankset • Alloy crankarms w/ solid steel chainring • Square taper interface • Does not include BB
$13.99 - $15.99
• Square taper interface • Only includes left crank
$21.59 - $22.79
- Horizontal square interface - Only includes left crank
No matter your skill level or experience on the bike, there's no better way to enhance your training and racing performance than by riding with a power meter. Lucky for you, Specialized has combined their incredibly light and stiff carbon fiber S-Works road cranks with dual-sided power measurement, making it the lightest (440g/172.5mm) and most accurate power meter available. The development of Power Cranks began with Specialized's Human Performance Team looking at riders in realistic scenarios on the bike. Historically, power meters have been validated by two different methods—one is by measuring the produced torque by applying a static, linear load to a crankarm or chainring, while the second uses a power generating motor to pedal the bike. Well, cycling is neither static nor linear, and humans apply power much differently than a machine. So, they found that neither of these methods answer the "real-world" accuracy question. To get the best test for accuracy, in all types of riding scenarios, Specialized built their own cycling treadmill, the WinMill, to measure power output to a known truth. This new benchmark lets them evaluate accuracy under all riding conditions—seated versus standing, various power and cadence levels, different weights, and a myriad of gear. This data acquisition process is their gold-standard for testing power meters, and through their testing and external validation from the Locomotion lab in Boulder, Colorado, Power Cranks have been proven to have the highest accuracy in real world scenarios (+/- 1.5%). The Dual-Sided S-Works Power Cranks utilize separate strain gauge systems to individually measure the effort produced by each leg. This maximizes the accuracy of your total power numbers, plus it helps you to better understand your performance as fatigue increases and when you're recovering from injury. And with class-leading temperature compensation firmware and waterproof enclosures, Power Cranks are easy to live with. Calibration is only required during seasonal-type fluctuations in temperature, and the included wrench makes battery swaps a breeze. - +/-1.5% real-world accuracy tested on the WinMill and validated by the Locomotion Lab in Boulder, CO. - Independent, dual-leg power measurement. - Works with ANT+ and Bluetooth devices. - Easy set-up and diagnostics with the Specialized Power app. (iOS and Android versions available). - Hollow carbon crankarms, carbon spider, and oversized alloy spindle offer superior stiffness and lighter weight than the competition—440 grams for 172.5mm crankarm length. - Fits Specialized road frames with OSBB or PF30 bottom bracket shell, as well as most BB30 road frames. - 110 BCD carbon spider (also compatible with 130 BCD carbon spider—sold separately). - Compatible with Shimano and SRAM drivetrains. Chainrings are sold separately. Use only with Specialized/Praxis chainrings 06217-1702 (52/36T) and 06218-1713 (50/34T). - Available in 165-180mm crankarm lengths.
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)
$31.99 - $32.99
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
$44.99 - $49.99
Shimano Acera FC-M361 cranksets feature sturdy construction, reliable shifting, and replaceable chainrings. - Spindle Interface type: Square Taper JIS
Shimano XTR Left Crank Arms - Spindle Interface Type: Hollowtech II
$120.00 - $140.00
The SRAM GX Eagle crankset delivers consistent performance, excellent chain retention and quiet operation. Featuring SRAM’s X-SYNC 2 tooth profile chainring, the GX crankset is engineered with each tooth's thickness precisely toleranced and controlled to work seamlessly with the chain's inner and outer links. Available in various configurations. - Forged 7000 series aluminum arms - Use with Eagle chains for optimal performance - Pedal Spindle: 9/16" - BB Included: No - Chainring BCD: Direct Mount SRAM - Crank Intended Use: Mountain - Number of Chainrings: Single - Drivetrain Speeds: 12, 11 - Chainline/Hub Compatibility: 141/148 Boost Hubs
A triple crankset with melt-forged arms and non-replaceable chainrings that is compatible with square taper bottom brackets. - Alloy crank arms - Steel chain rings - 48mm chain line with a 122mm spindle - Integrated chain guard - Chainrings are not replaceable - Number of Chainrings: Triple - Chainline/Hub Compatibility: 135/142 MTB Hubs - Crank Intended Use: Mountain - Pedal Spindle: 9/16" - Rings: 48/38/28 - Spindle Interface Type: Square Taper JIS - Drivetrain Speeds: 7 - Chainring BCD: Riveted - BB Included: No
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
Stronger, stiffer, and lighter than ever; that is exactly what you can expect with the Quarq DUB crank arm assembly. Paired with the DZero or DFour DUB power meter spider and the DUB bottom bracket, the Quarq DUB crank arms assembly builds a power meter that can handle the toughest of conditions. - Only compatible with Quarq DZero DUB and DFour DUB power meter spiders - Does require a SRAM DUB bottom bracket
Problem Solvers Crank Arm Fixing Bolts - 8mm - Sold as a pair
Spacers to insure proper chainline and chainring spacing on your bike. - 3.5mm thick - Material: alloy
$6.59 - $17.99
Secure your chainrings for your ride with Origin-8's Double/Triple Chainring Bolts. Made for double and triple chainrings, each set includes 5 male/female bolts to securely connect your chain rings to the crank. Available in black and silver, as well as aluminum or steel.
$7.99 - $20.99
Revamp the look of your single speed cranks with some new hardware. Origin-8's Single Chainring Bolts give a high polished look to any crankset. The anodized finish comes in multiple colors to highlight your crank and makes it look as good as you do. You can also choose between steel or aluminum bolts. • Set of 5 male/female bolts • Inside measures 4mm when tightened, 7mm total height
$7.99 - $9.99
- Chainring bolt sets are available in sets of four or five - Bolts have 5mm hex heads - Material: Steel - Type: 2x
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. - Single speed crankset - Forged AL6061-T6 alloy crankarms - CNC alloy 1/8" 46 tooth chainring - 42mm chainline with 103mm JIS BB
$49.99 - $199.99
- 42x30x7mm BB30 cartridge bearings housed in a press-fit, composite sleeve assembly for use with a BB386EVO or BB30 crankset in a BB386EVO or Press-Fit 30 (PF30) frame - Road sets include bearings, shields and a wavy washer - Mountain sets include bearings, shields and a spacer - Choose ceramic or stainless steel options
$291.95 $400.00 27% Off
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.
$95.95 $160.00 40% Off
This very light, stiff, and strong carbon crank spider optimizes your power transfer. - Stiff and lightweight. - For use with S-Works carbon road cranks.
- Crank Construction : HOLLOWTECH II - Optimum power transfer
The Shimano 105 double crankset balances weight and efficiency without sacrificing stiffness. It offers Rider Tuned performance with numerous gear combinations, and the wider gear pitch increases chain clearance with small gearings and allows for as short as 410mm chain stays. - Hollowtech II construction - 11-speed - 110mm Shimano Asymmetric BCD
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.
- Octalink bolts include steel washers, JIS includes black plastic caps - HT2 mount bolts (low torque plastic, except XTR-M970 aluminum) are for mounting non-drive arm - Hollow bolts (SH-21504) not recommended for non-treated spindles
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
$219.99 - $222.99
- 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
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