ok... so i have an 06 f4i and i want to change front and back sprocket... thinking about going with vortex, but i don't really know what size should i go... all i want is a little bit of more acceleration 'cause i don't mind loosing some top speed because i'm using the bike only for street riding...and i also want the front end to be lighter to do some wheelies...
so what do you think???

 

I went -1 on the front and left the rear stock. Bike accelerates quite a bit harder and top speed is still ~145mph (165mph indicated w/o speedohealer )