The Shimano Ultegra FC-R8100 Crankset is a key component of the renowned Shimano Ultegra 12-speed road lineup, designed to enhance your cycling experience with exceptional front shifting and transmission efficiency. This crankset features an innovative design that caters to a diverse range of riders, including triathletes and those with specific biomechanical needs, offering various lengths for a perfect fit.Experience an optimal balance of stiffness, strength, weight, and rotational performance.The Hollowglide structure reduces weight while maintaining strength, ensuring superior power transfer and quicker, more precise front shifting.