Originally Posted by
FBinNY
I suggest you reread the OP, esprcially here where he says the chain changes to all seven sprockets.
......I checked that the chain is moving along all 7 gears and it is. However, gear 6 and 7 seem to not be working.
I read, and comprehended that the first time I read it. However, it seemed unlikely that the chain could actually be riding those cogs to no effect.