I'd look at the clutch upgrade kit from HDD depending on your riding style (trails, dunes, or drag)...they sell a setup that has stiffer clutch springs and a replacement fiber (upgrades that last half fiber to a full one) so your stock clutch could hold up to about 80ish or so. Only tradeoff is the clutch pull is a lot stiffer. I run a Slingshot lockup in mine with 10% springs and it seems to hold my ~70ish hp just fine.