Rear derailleur adjustment I have a 7 speed Shimano derailleur. It shifts really good from 1 to 6 but when
I try to shift from 6 to 7 it just doesn't want to shift. Can someone help me?
The problem here seems quite obvious, you have to tweak the H screw on the back of the derailleur. You have to unscrew it just until you are able to shift down to the last gear. Don't unscrew too much, because the chain will escape out the last gear, since the shifter rely on that stop screw.