SHIMANO Nexus BR-IM40 Rear Cap Nut 4-Piston – 3/8″ – Y31414010
This Rear Cap Nut can also be used on the following rear hubs:
– Shimano Nexus SG-8C31
– Shimano Nexus SG-8C20
– Shimano Nexus SG-8C22
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.