FC-R9200 FRONT CRANKSET DURA-ACEPrecision Pedalling To the core of the bicycle, the crankset, Shimano has come up with a no holds barred approach, ensuring that pedal efficiency is maximised, weight is minimised, stiffness is second to none and shifting precision is the best available on the market. HollowTech Maintaining the fine balance between lightweight and stiffness, Shimano's crankarms are hollow, while not compromising on rigidity. This design allows a lighter crankset,