UPDATE: I slapped on the spacer and cassette. Wobble in the cassette. Spacer must be filed out to clear cassette rivets, or rivets must be removed so spacer will sit flush to freehub and cassette.
So I hand filed the 4.5mm spacer in three areas with a round file, making three little dome cutouts in the spacer, to make space to clear the rivet heads on the back of the cassette so the spacer will sit flush against the freehub and cassette. I didn't remove the rivets as RBW didn't recommend doing that. I put it and the HG50 13-30 7-speed cassette on and have been riding with it for many months now. Maybe 9. No cracks in the spacer from my filing (I purposely did the dome cutouts thinking that would help avoid stress riser corners if I had cut out square shapes). Friction shifting is now much better than 10, 9, or 8 was. Autoshifts rarely happen at all now. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
