The ULTEGRA FC-R8100 12-speed road crankset is a core component of Shimano's new 12-speed road lineup, built upon the brand's legendary front shifting and power transmission efficiency. This crankset represents a refined evolution for seamless 12-speed shifting. It is available in a range of lengths from 160 mm to 175 mm, providing optimal performance and a perfect fit for smaller riders, triathletes, and cyclists with specific biomechanical needs.