Shimano Gruppo Ultegra R8170 Di2 Disc 12V Crankset:50-34 / 165 mm Optimal duration between refresh cycles

Optimal duration between refresh cycles

INpower is protected from shocks

On/off fibers in specific areas for optimal ventilation

The foot part is inspired by the Castelli Rosso Corsa sock for maximum comfort inside the shoe

Shimano Gruppo Ultegra R8170 Di2 Disc 12V Crankset:50-34 / 165 mm Optimal duration between refresh cyclesDESCRIPTION The all new SHIMANO ULTEGRA R 8170 groupset delivers the power transfer that riders Shimano love, but with even more crank length options. COMPOSITION Crankset 2x12 S SHIMANO ULTEGRA HOLLOWTECH II FC R8100 ULTEGRA's new FC R8100 crankset offers the same fast, precise chainring shifting and efficient power transfer that riders love Shimano , but with even more crank length options. With lengths from 160 to 175 mm, the ULTEGRA cranks are now