The Shimano 105 FC-R7000 Hollowtech II crankset balances ...
weight and efficiency without sacrificing stiffness. The wider gear pitch increases clearances with small gearing on modern frames, allowing you to take full advantage of frame clearance for larger volume tires.
The Shimano Dura-Ace FC-R9200 Hollowtech 2 Crankset ensures ...
maximal power transfer from the pedals to the chain. Hollowtech II technology keeps the weight of the cranks down and the top-of-class chainring design provides the fast and precise shifting of Shimano's ...