I have a coworker's rear wheel to repair. The freehub pawls ceased engaging, resulting in free-spin in both directions. A replacement freehub body is ludicrously expensive, so I want to remove the existing one and try a clean/service.
What is the right tool to remove this freehub body from the hub?
There are two slots, with a depth of 4mm and the shell has an internal diameter of 29 mm
- A Park FR-2 has two tangs but they're about 7mm thick and will not engage.
- A Park FR-3 has four tangs so will not fit.
I tried making a form-driver from some stout pipe by grinding it to size (essentially a really big screwdriver) and using the leverage of the entire rim, has broken the corners off my makeshift tool.
I am tempted to try hardening the ends of this pipe, but this is getting well off into the desperate category.
Here's my current collection of freehub and cassette fittings. I was tempted to grind down the lugs on my FR-2 (front left) but that is hardened steel and may destroy its usefulness for regular usage.