Shimano FC-RS510 double chainset, 52 / 36T, for 135/142mm axle, 165mm, black

Lightweight 2-piece design 11-speed chainset. 2-piece design forged and anodised aluminium crank arms keep weight low. The chainring teeth have been developed to work in conjunction with HG-X 11-speed chains for increased contact to provide greater efficiency and improved power transfer. Bottom bracket bearings are spaced wide apart, enabling the use of larger bearings and an increased axle diameter. Chainring spacing has been optimized for use with 135 / 142mm rear axle spacing and short chainstayes. Specification Can be used with Shimano external or press-fit bottom brackets The system allows for easier installation, adjustment, and maintenance Lightweight anodised SG-X aluminium chainrings for smooth and precise shifting Product Type Chainsets Speed 11 Speed Discipline Road Colour Black Size: 165MM 50/34T, 170MM 50/34T, 172.5MM 50/34T, 175MM 50/34T, 165MM 52/36T, 170MM 52/36T, 172.5MM 52/36T, 175MM 52/36T; Colour: BLACK