Optimized lightweight crank arm design produces excellent power transfer efficiency. Minimized weight without sacrificing stiffness. HOLLOWTECH II. Rider tuned gear performance through various gear combinations. Possible to choose the best choice for ride. Redesigned FC for greater frame compatibility. Wider gear pitch increases clearance between chain and leading teeth to provide compatibility with frames with O.L.D. 135mm and 410mm chain stay length.
Best Price: £145.00 from Merlin Cycles