gillera stalker flat on top

hi ive just fitted a new 70 kit to my stalker it has bags of power and pulls like a train untill 40 mph then seems to go flat and just kreep to 50 , which i find unacceptable as i know i should be getting more speed and power than this , could anyone tell me if they think rollers might be the issue , it has a gear up on and i know its not that as i ran it with my last kit that i blew up but im guessing this new kit is making its power at a different place in the rev range

 

sounds like you need slightly lighter rollers

 

i shall brave the cold and go give a try chears

 

tell me about it mate, I'm out in it in a bit, too cold lol

 

great changed rollers started her up and before i could test it the throttle cable snapped oh happy days

 

haha lol its always the way