520 conversion = Weight Reduction._ Less Unsprung Mass._ Sometimes up to 4lbs depending on the Motorcycle.__Your bike will accelerate faster, brake quicker, and handle better._
I prefer Vortex sprockets._Typically unless you're going 3+ in the rear, you can still use your stock chain. But if you do get a new chain, your New Chain will be plenty long for most all gearing selectons.__
A Sprocket Choice with a Larger rear or smaller front to will greatly increase your bike acceleration.
or Choose a Smaller rear Sprocket and Increase the Top End. Whatever fits your needs.