With radiator fin

Shimano's hydraulic disc brakes provide consistent stopping power in wet and muddy conditions

The Shimano 11 Speed inner 39 Tooth Dura-Ace FC-R9100 chainring matches the rest of the Dura-Ace groupset and gives you the best shifting performance

hardened-steel races is the third option

Note that it is not compatible with previous 8-bolt cranks in reverse

shimano spd sl pedals pd 8000 brand_shimano With radiator finShimano Ultegra PD R8000 SPD SL Pedal To match the stiffness of the FC R8000 Hollowtech II crankset, there is no better option than the lightweight PD R8000 pedal. Its carbon composite body and extra wide platform will give you the transfer of power you need.