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Shimano Alfine CT-S500 Chain Tensioner
Allows the use of an internally geared hub on a frame with vertical drop-outs.
Chain Tensioner
20 tooth max rear sprocket
16 tooth chainwrap capacity
41.8mm chainline
Uses washers on on the mounting bolt for 5mm of chainline adjustability
Compatible chain - 3/32"
Excl. postage