I used the outlaw super-duty clutch kit from highlifter. I only have stock tires now but it is great.
The install was a pain ( to much plastic to remove) I am not much of a mechanic. I went by the how to and I did not remove the clutch I change the springs with it still on the bike. You will need to rasie the bike on it end to place the clutch adjuster in place when reinstalling the cover.