Shimano Nexus SG-8C31 8-Speed Roller Brake Internally Geared Hubs

• Shimano Nexus SG-8C31 8-Speed Roller Brake Internally Geared Hubs
• Includes 19t & 21t cog, cog snap-ring, 3 size chainstay clamps, 3 sets of non-turn washers, hub nuts & cassette joint
• 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 = 1.615
• Does not include non-turn washers for vertical dropouts (HU7793, HU7794)
• 132mm over locknut dimension