help me fix the bearings in my freewheel. I need to know the number of ball bearings top and bottom in my shimano mf-hg20 freewheel, and what size are they?
I saw this. However, looking at a old 7 speed freehub body, it looks like it takes a special spline wrench (TL-FH10). It looks very similar to the fixing bolt here. Or do I need some other wrench ...