Ringo18 is right. Depending on what kind of tensioner you are running. If it is a roller with a spring, you may need to swap the spring for a longer or shorter one depending on which way you go with the gear. If you are running a FOZ type tensioner, which the chain runs through two block, you can open or close up the blocks. As said before, the birdcage timing is important and you will notice a difference in the rear end if they are not adjusted correctly. Hope this helps.
