Road crankset. 2x12-speed. Crank arm length: 175 mm. Chairings: 34-50. ULTEGRA's new FC-R8100 crank maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but with even more crank arm length options. Spanning 160 to 175 mm in length, ULTEGRA cranks now cater to smaller riders, triathletes, and cyclists curious about shorter crank arms.
An integral part of Shimano's new 12-speed road lineup, the FC-R8100 crank builds upon Shimano's legendary front shifting and transmission efficiency.
- Average weight: 700 g (50-34T), 711 g (52-36T)
- Compatible chain: HG 12-speed
- Chain line: 44.5 mm
- P.C.D.: 110 mm
- Q-factor: 148 mm
- HOLLOWTECH crank arm
- HOLLOWGLIDE
- Recommended bottom bracket|Threaded: SM-BBR60; Press-Fit: SM-BB72-41B
- Threaded bottom bracket shell width: 68 mm, 70 mm
