Shimano Nexus SL-C6001 8-Speed RevoShift Shifter - Optical Gear Display, For use with Nexus Inter-8 Internally Geared Hub, BlackThe Shimano Nexus SL C6001 RevoShift shifter for Inter 8 8 speed Internally geared hubs makes it easy to see your gear, works smoothly with Shimano hydraulic disc brakes for better control, and provides consistent, long lasting performance. Offers easier viewing of the gear number indicator Enhanced finger access compatibility with Shimano hydraulic disc brake levers for improved control and comfort Consistent actuating force for long lasting