Rebuilding Koozer XM470 Rear Hub

Rebuilding Koozer XM470 rear hub after removing worn out bearings and replaced with 6902-2RS hybrid ceramic bearing. I made a bearing press using a 175mm mountain bike axle and couple of spacers , washers and nuts. The worn out bearings served me very well, made more than thousand kilometer and been through hell of lot races. I can say I have had a pretty good stock bearings in my hubs.

Instead of replacing it with exact stainless steel bearings, I decided to risk of buying more expensive hybrid ceramic bearings to try on. I read several bad reviews more than good about using those on bikes saying that the harder ceramic ball bearings will wear out the outer steel race. I want to try it myself and let see what we can have after a while.

Before I put the bearings on. I decided to pop the dusts seals out and pack more grease in to prolong the next servicing time even more as I always wash my bike every after heavy use .

Will post a freewheeling time video soon.





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