Oh, thanks for the clarification. That makes more sense.
Oh, thanks for the clarification. That makes more sense.
2009 Trek 7.2FX WSD, brooks Champion Flyer S, commuter bike
That "washer" - together with the rubber parts - is actually the dust seal. It's present in the jockey wheels on my bikes whether they have bearings or ceramic bushings inside. Essentially, it's a simple labyrinth seal, so a drop of oil now and then will help maintain the seal.
Speed comes from what you put behind you. - Judi Ketteler