Shimano Alfine CT-S500 Chain Tensioner (Silver)

chain tensioner replaces derailleur for running a 1-speed drivetrain on a vertical dropout frame Variable tension and position (can be used on rigid frames or suspension frames with varying chain length) Supplied ...

to buy a dedicated frame? Try the Melvin. The Melvin bolts to the frame where the rear derailleur would normally go and allows the use of a single speed rear wheel on ...

quick-release hubs, use Surly adaptor (CH9996) Allows for the use of a derailleur on frames without derailleur hangers For use with rear-facing horizontal dropouts and 10mm axles This product was added to ...