Shimano Ultegra R8100 Hollowtech II Crankset 50-34T 172.5mm RGroup_08455671C4891FDC7A5989C2F9A550961B7F683A With its powerful Bosch CX

With its powerful Bosch CX motor and a robust 625Wh battery

Its loose-fitting design and TruDri fabric wick sweat away

An integrated visor shields from the sun

You can hide it under a bottle cage or behind a saddle bag

providing smooth pedal assistance and an extended range for a comfortable ride on both paved roads and light trails

Shimano Ultegra R8100 Hollowtech II Crankset 50-34T 172.5mm RGroup_08455671C4891FDC7A5989C2F9A550961B7F683A With its powerful Bosch CXThe Shimano Ultegra R8200 Hollowtech II Crankset offers smooth and precise shifting with quicker operation and increased crank arm variations to suit all riders. Featuring an updated HollowGlide structure, it boasts a lighter build, better power transfer, and a more efficient tooth design. Shimano's integration of biomechanics research and World Tour experience ensures a seamless riding experience. The new Shimano Ultegra Di2 drivetrain is slick