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.
You were asking about bbs
@dancing james started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
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.