We do not rest on our laurels. So, when we found a way to make our lightest and stiffest crank even lighter, we took it. A new, optimized layup reduces the weight of our hollow carbon arms by 29 g, and to meet current fitness trends, we have introduced our first carbon crank arm length of 160 mm. Our X-Range gearing minimizes cadence changes when shifting in the front, maximizing your ability to deliver power.