Thought I'd share my two years impressions of the Koozer XM490 Pro hubs. I bought them to replace some cheap loose ball bearing noname hubs on a commuter / do it all bike of mine. I did not replace anything but the hubs.
Reliability was the most important aspect for me, so I wanted a steel axle in the rear hub.
They have been fine, and I haven't done anything but push some more grease into the pawls since I got them. I never ride in the rain, unless I get surprised during a trip. I ride mostly asphalt and gravel, so the hubs are not taking much dirt or abuse.
Still, I'm very happy with these. Good quality for the price.
Links:
Pros:
- Good quality to price ratio
- Good spare parts availability
- Steel freehub body is available too (B10-S)
- Lots of adapters available for different frame and fork sizes
Cons
- Pawls sometimes skips a bit and creates a "clunk" sound. I haven't done anything to troubleshoot this yet, though. Has not caused any issues.