Genuine Shimano replacement chainrings for the FC-R8100 & FC-R8100-P cranksets . The Shimano Ultegra FC-R8100 12 speed chainrings are the perfect replacement for worn or damaged chainrings. Shimano's class leading chainrings offer the optimum balance of light weight and rigidity for precise shifts even under high load. The teeth have been developed to work only in conjunction with 12-speed chains for improved contact providing more efficiency and improved power transfer. Compatible chain Shimano HG 12-speed. Shimano part numbers: 52T-NH - Y0NG98020, matches 36T-NH - Y0NG36000. 50T-NK - Y0NG98010, matches 34T - Y0NG34000. 46T-NH - Y0MZ98110, matches 36T-NH - Y0NG36000.
Best Price: £17.99 from Merlin Cycles