There seem to be two approaches to single speed freewheels:
- Screw on to the hub a combined freewheel/sprocket combination (eg. White Industries ENO)
- Slide on a single sprocket to an existing splined freehub body, and use spacers to correct the chainline
I have the former (KT-SY1F / KT-MX7R 6-Bolt Disc hub, Shimano SF MX-30 16T), but I am thinking about upgrading my wheels.
But most high-end hubs (eg Hope Pro 4) appear to come with a splined freehub body. Are these compatible (or can they be made to be compatible) with the screw-on freewheel/sprocket combo? If so, can the chainline be corrected for in this configuration?