Shimano Nexus SG-C6000-8C 8-Speed Internally Geared Coaster Brake Rear 36h Hub Hub includes 19t and 21t cog, 3 size chainstay clamps, 3 sets of non turn washers, hub nuts and cassette joint. 132mm over locknut dimension Shifter not included Non-turn washers for vertical dropouts (HU7793, HU7794) not included Nexus/Alfine 8-speed hub gear range: 1st gear = 0.527, 2nd gear = 0.644, 3rd gear = 0.748, 4th gear = 0.851, 5th gear = 1.00 (direct drive), 6th gear = 1.223, 7th gear = 1.419, 8th gear = 1.