in an effort to help another get their bike in ridin shape again, I need to 're-line' the inside of a UN72 adjustable cup. The 'lining' that holds that spindle/bearing assembly snug is shot and the assembly rattles around inside the cup.
Anyone have thoughts on what might be useable in there?
would Shimano actually have replacement sleeves?
Otherwise the BB is fine, and we ARE being cheapskates... and want to play with the idea of 'repair'
Do we need to get a replacement cup?
flog away...