When you went -1 on the countershaft. How did you relieve the chain slack? Tightened up? Removed link(s)?marsolais said:Just went one down on the front and when I got the bike back from the shop it makes a grinding/viberation when I roll to a stop with the clutch pulled in. It does it between like 27 to 15 mph. I have no idea what the hell the problem is. Could us some help.