don't listen to wat ppl are saying about the Shinko hook up. they either DONT have the tire and have never used it and simply talkn out of their ass or their bike doesn't make enough power to even matter....
my bike last year was 71.5 inches WITH a Shinko hook up and it hooked like velcro on the street makn 335 rwhp. I put a longer arm on it (68 inches) and it was absolutely worthless on the street. I thought my tranny was slippn but no it was too long and the tire was slipping so I'm going back to probably 74-75 inches.
I bought new rims and tires (tires came with the rims) and the rear tire is a Power One which is brand new so I'm gonna give that a shot.
WOT that Shinko hook up would not spin. ur rear suspension will play a huge roll in how much u do or don't spin too.
and for the guy thats stretched 10.5 inches it may look kool in ur eyes but if ur not spinning hard then ur bike is basically stock. and even stock at 79 inches its worthless and of course ur spinning at 4-5k course ur TOO LONG for the street. and saying keeping it stretched long will prevent you from wheeling is non sense.
I'm pretty sure my bike is makn far more power then urs and at 71.5 (+3) inches under WOT it NEVER wheelied. tune, setup and boost control prevent that. the cure is not a loooooooong arm. not by a long shot!
ones weight will play a big role too. a 260 lb guy can get away with a 6-8 inch stretch cause he simply weighs too much and puts weight on the rear tire but anything longer then that his weight will be too far from the rear tire. which is why a lighter guy at 6 over may experience the same issue cause his weight is too far from rear and he doesn't weigh enough to plant the tire.
at the track its a non issue cause its prepped. the street aint prepped.