Is this happening AFTER the wheels is on the bike and you've cranked the freewheel tight?
If so, then you have a dropout alignment problem...
With sealed cartridge bearings you must have perfectly aligned dropouts or binding will occur - with an index feel to the wheel...
=8-)
Robert Shackelford San Jose, CA
Quoting wfbibb@bellsouth.net:
> I have recently acquired a 1982 Trek 728 with Sansin hubs and catridge
> bearings. I replaced the rim on the rear wheel and when I put the freewheel
> back on finger tight, the bearings were fine (not as good as cup and cone,
> but fine.) However, when the freewheeel tightened upon riding, the bearings
> were binding in multiple spots. It felt like they were indexed. I replaced
> the bearings and the problem is better, but still there. Does anyone have
> any ideas? Could I shim out the freewheel so that it is in the same position
> relative to the bearing as it is when finger tight? If so, where can I get
> shims?
>
> Thanks for any suggestions.
>
> Frank Bibb
> Rome, GA USA
>
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