So I bought a used (but looks in pretty good condition..?) DA cassette with a fairly expensive brand new sram chain. Chain is slipping in gear 7/8/9 - all other gears are great. Is this normal when combining used/new drivechain parts?
That cassette looks like one that I would consider replacing on account of the visible wear.
As has been mentioned, a new chain won't play nicely with it.
ETA - X-post near as dammit with @danstuff
So I bought a used (but looks in pretty good condition..?) DA cassette with a fairly expensive brand new sram chain. Chain is slipping in gear 7/8/9 - all other gears are great. Is this normal when combining used/new drivechain parts?
Thanks in advance