Hollowtech II crankset delivers optimum power transfer, balancing weight and efficiency without sacrificing stiffness. An optimized lightweight crank arm design improves performance whereas the redesigned chainring tooth profile increases clearance between chain and leading teeth to provide compatibility with frames featuring 135 mm O.L.D. and 410 mm chainstay length.

Crank lengths: 170 mm
Chainring gradation: 50-34T