Quote Originally Posted by sikwitit
What would you say would be the best conversion to do to a 09 ZX6?

ILL-matic racing
Less centrifugal mass is the key here. 520 is usually a safe bet, very common chain and sprocket setup. You can pick up an entire setup off eBay (Vortex front and rear sprocket with RK Gold 520) for around $150. I used that exact setup on all of my stunt bikes and I never had 1 issue, even on my 929 which was -1/+7... never snapped or stretched it.