Cassette hubs cannot accept freewheels; nor can freewheel hubs accept a cassette.The freehub body of a cassette hub is shaped specifically for a cassette. Meanwhile, freewheels and freewheel hubs operate…
While it's technically possible to install a fixed cog on a freewheel hub, the cog will not be as secure as possible due to the absence of a reverse-threaded lockring.…
This post discusses the direction of the threads found on single and multi-cog freewheels: Definitions 1. Multi-cog Freewheel Multi-cog freewheels represent a cluster of cogs with a built-in ratcheting mechanism.…