Finally an affordable high-quality tensioner that allows you to use your triple cranks with an internal hub in the rear. The Alfine tensioner can take up enough chain for even a 56-24 crankset.
-Not for use with coaster brake or fixed gear hubs -20 tooth max rear sprocket -16 tooth chainwrap capacity -41.8mm chainline -Uses washers on the mounting bolt for 5mm of chainline adjustability -CT-S500 Alfine Chain Tensioner -
Shimano Alfine and Nexus SG-8R31/8R36/8C31/S501 Hub Small Parts Kit with CJ-8S20 Cassette Joint for Vertical and Horizontal Dropouts Shimano Internally Geared Hub Small Parts Kits
Alfine hubs are packaged without small parts and require this kit plus a cog Nexus hubs are packaged with small parts and cogs and do not require an additional small parts kit Cassette joint does not fit Di2 Alfine hubs Includes non-turn washers for vertical dropouts (8R/8L) and horizontal dropouts (6R/6L), cap nuts, cog snap-ring and CJ-8S20 cassette joint. Does not include an Alfine/Nexus cog -