When I had my suspension components rebuilt the rear shock now has an adjustable length shaft and is longer than stock. I would guess about 1-1.5 cm. I believe this means that the little slack setting diagram on the swing arm is now not correct, and I should have more slack in the chain. I am not sure how much. Any thoughts on slack setting is appreciated. I tried to search the forum but all I get is "Your submission could not be processed because you have logged in since the previous page was loaded.", which is not true, and the search fails.