The Shimano 105 FC-5800 11 speed chainrings are the perfect replacement for worn or damaged chainrings
The chainring teeth have been developed to work only in conjunction with Shimano HG 11-speed chains for improved contact providing more efficiency and improved power transfer
Genuine Shimano replacement chainrings for the FC-5800 cranksets available in 53T, 52T, 50T (Outer ring), 39T, 36T, 34T (Inner ring)
