Freewheel Singlespeed BASIC

This product, the Freewheel BASIC Singlespeed, is a modular unit that consists of a single sprocket and a coasting mechanism. It has standard 1.37" x 24 tpi threads and can fit onto any hub that requires a thread-on freewheel, such as BMX hubs, track hubs, and multi-speed freewheel hubs.