Shimano Nexus / Alfine Cog Snap Ring.
Cog Snap Ring: Used to attach driver cog to internally geared Shimano Nexus & Alfine hubs.
Model: SG-8R20
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.
Cog Snap Ring: Used to attach driver cog to internally geared Shimano Nexus & Alfine hubs.
Model: SG-8R20
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.

