The Shimano FC-R8100 Ultegra Road Crankset is built for riders who want quick, confident front shifting and efficient power delivery from every pedal stroke. Using a lightweight HOLLOWGLIDE structure to maintain strength, it helps you keep momentum while enjoying smooth 12-speed performance. Available in multiple crank lengths, the Shimano FC-R8100 Ultegra Road Crankset also makes fit and comfort easier to dial in for road, training, and racing.