Raptor 660 Sprocket Gearing?????

[Raptor660R]

I am really debating what to change my sprockets to. My stock ones are 13-Front 40-Rear I believe. I do fast trail riding, but i do drag racing to full throttle to toping out. I don't want to lose alot of mph, and am not sure how much I would lose if it went to 12-teeth in the front. Anyone on here change their sprockets on a Raptor? How do you like it?

[Yamaha72]

12-T in the front and stock 40-T in the rear is what I got and It is awesome for trial riding, but do expect to lose some top end speed...

[yamaha350r]

i think if u change the front to smaller its more acceleration... not 100 percent sure but thats wut i hear

[RAD 450r]

Hey this might help I saw it on another forum.. it might help if you set the RPM to 7500 b/c it seems more logical atleast for spead that is



http://jandjcreativedesign.com/sprocket.php

[Raptor660R]

I ordered a 12T for the front, it will give me more acceleration, yet i will lose like 7 or so MPH at top. I think i might buy a 14t also for the drag races. I'll see how this 12T works, I mainly want it because I will be riding at Ocala National Forest soon. Right now if I pull back on it I can wheelie in 4th, so I wounder how it will do with the new 12T.