Shimano Ultegra FC-R8100 12 Speed Crankset Size:160mm 8-millimeter (PRAC0061) and 34

8-millimeter (PRAC0061) and 34

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which has a lower profile and is reactive and springy for instantaneous response and optimal power transfer

Cielo lens - Enhances the contrast on cold tones in extremely bright conditions

Retains chain tension after the rear wheel is removed

Shimano Ultegra FC-R8100 12 Speed Crankset Size:160mm 8-millimeter (PRAC0061) and 34Ultegra's FC R8100 12 Speed Crankset maintains the same quick, precise front shifting and efficient power transfer that Shimano riders have grown accustomed to, but now with even more crank arm length options. Spanning 160 to 175 mm, it caters to smaller riders, triathletes and cyclists curious about shorter crank arms. An integral part of Shimano's 12 speed road lineup, the FC R8100 builds upon Shimano's legendary front shifting and transmission