Cranksets

Offering all the precision and functionality of the DURA-ACE power meter, the ULTEGRA FC-R8100-P power meter comes in a more affordable package. Scientific training requires accurate measurement and user-friendliness, and the new ULTEGRA R8100 power meter has both. Its dual-sided measurement is accurate within 1.5% and zero offset calibration is a quick and easy process. Perhaps most importantly, its long battery life, easy recharge, and ANT+ and Bluetooth®LE connectivity makes using and recording your workouts easier than ever. Integrated, waterproof, and rechargeable Li-ion battery - Up to 300+ hours (TBD*) of ride time * Depending on ANT+/Bluetooth®LE settings Accurate data collection - ±1.5% (TBD*) strain gage accuracy throughout the entire calibration range * Depending on ANT+/Bluetooth®LE settings - Proprietary strain gauge Possible to start quickly - Simple zero offset calibration with switch on transmitter Active temperature compensation - Software automatically compensates for temperature changes

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

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

- 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

- 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 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 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

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

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

- FC-MT101-2 double crankset for 2 x 9 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

- Material: Aluminum - Riveted chainrings - Chain Compatibility: HG/UG - Pedal Spindle: 9/16'' - Bottom Bracket: Not included - BB-UN26, 122.5mm

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

- 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