The Trek Rail Rear Hub doesn’t use sealed bearings, rather very small individual ball bearings that run in a greased race. In my case the factory had failed to apply any grease on one side of the hub so the balls were running in the race without any lube, which stuffed them. They were...
I have 2022 Trek Rail 5, the rear wheel bearings keep coming loose allowing the wheel to “wobble”. It has fixed three times in about 300km of lite use. First time just after I brought it, the bike shop just tighten up the bearings. Second time I took it to another shop who found there was...