ULTEGRA's new FC-R8100 crank retains Shimano's long-standing fast and precise front shifting performance and high-efficiency power transmission, and provides more crank length options. ULTEGRA crank lengths range from 160 to 175 mm to accommodate smaller riders, triathletes and cyclists.
The FC-R8100 crank is part of Shimano's new 12-speed road bike product line, built on Shimano's legendary front shifting and transmission efficiency. ULTEGRA cranks are the next evolution in seamless 12-speed shifting and are available in 160 to 175 mm crank lengths to provide performance and optimal fit for smaller riders, triathletes and riders with specific biomechanical needs. Fit.