I bought a "mystery meat" Peugeot bicycle, it turned out to be 1991 Peugeot "Milano" (couldn't find it in catalogs): 7-speed rear cassette, Shimano 200GS groupset. I disassembled and cleaned everything, replaced the chain and the cassette. I noticed two problems:
- The bearing cones and bearing cups have significant pitting on the non-drive side
- If I spin the wheel freely while cassette is not spinning, the cassette wobbles ever so slightly, the edge of the largest gear moves maybe 0.5mm back laterally back and forth
For now I've put it all back together, but now that everything has been cleaned and lubed, I can actually hear some noises from rear bearings when riding on a smooth surface; it's synchronous with wheel rotation and I can only hear it when I'm actually on the bicycle.
My question is: what would be the optimal set of components to replace? Should I try to find bearing cups and replace them together with cones? If it's not worth the hassle, what parameters should I take into account when looking for a replacement wheel?
Rear hub is Shimano FH-HG20:
Here's a PDF: https://si.shimano.com/pdfs/ev/EV-FH-HG20-1108A.pdf