Shimano Ultegra FC-R8100 12 Speed Crankset Size:172.5mm Specifically designed for installing 30

Specifically designed for installing 30

Adapts 1-1/4" tapered steerer forks to 1

Anodised in 10 colour options

So we pushed the limits once again and created a wheel

Improved aerodynamics

Shimano Ultegra FC-R8100 12 Speed Crankset Size:172.5mm Specifically designed for installing 30Ultegra'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