The Shimano FC-M640 Zee 10 speed single chainrings are the perfect replacement for worn or damaged chainrings
Shimano's class leading Zee chainrings offer the optimum balance of light weight and rigidity for precise shifts even under high loads that downhill or enduro riding and competitions are renowned for
The teeth have been developed to work only in conjunction with 10-speed HG chain providing more efficiency and improved power transfer
Genuine Shimano replacement chainrings for the FC-M640 Zee single cranksets available in 38T, 36T and 34T
