I'm not sure what this has to do with mud ingress?
Here is the jockey wheel with the bearing shield removed, the BB looked the same.
A clean and re-grease got them going again but they're a bit rough now. Maybe it's unavoidable.
I fixed this problem, by never racing CX.
https://www.youtube.com/watch?v=bFEoMO0pc7k
@hippy started
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I'm not sure what this has to do with mud ingress?
Here is the jockey wheel with the bearing shield removed, the BB looked the same.
A clean and re-grease got them going again but they're a bit rough now. Maybe it's unavoidable.