These Specially designed replacement chainrings, have a special ceramic/PTFE coating applied to the rings in place of the regular anodised finish. This has two benefits
- 10 times less friction & 4 times the wear resistance of a standard ring. The Stainless steel pick-up pins & machined shifting aids on the middle & outer rings provide the smoothest changes possible on 8 & 9 speed systems, even under power! Please Note: Compatible with M960 only