Shimano Nexus SG-C3000-7R 7-Speed Internally Geared 36h Rear Hub Shifter and brake not included 130mm over locknut dimension, 182mm axle length Nexus 7-speed hub gear range: 1st gear = 0.632, 2nd gear = 0.741, 3rd gear = 0.843, 4th gear = 0.989, 5th gear = 1.145, 6th gear = 1.335, 7th gear = 1.545 Includes 19t and 21t cog, 3 size chainstay clamps, 3 sets of non-turn washers, hub nuts and cassette joint Non-turn washers for vertical dropouts not included (HU7793, HU7794)