just really got to spend a little time on my bike. just got pipes and juice box.low end is lots better! picks up at lower rpm. now i have a problem when i twist it up at 4000rpm the tire spins. sow can i get a wider tire to grab the road better?

I've heard you can do a 200 rear on the stock rim and swingarm.

Arm and a fatter tire print is straight line wheel spin stopping put it to the ground a little later will it spin. Are you willing to sacrifice turning hard and sharp like you normally ride; just because my front end lofts I am going to put wheelie bars on mine every time I go out?
Think about how much wheel spin you plan to be in and adjust chassis accordingly.

what tire are you running?

stock tire. really want a tire that grabs a lot better

just about anything is going to be better than stock. i've got bridgestone's 190/55 bto16. find a dealer that will price match and mount your tires for free if you can, and order from bikebandit.com if possible. you will not be disappointed. i put 200 miles on mine yesterday. tight switchbacks and long sweepers both felt awesome. wife on the back 90% of the time too on top of that.

bt016 or a michelin pilot power. ;)