Bike has been rebuild recently everything is good worka fine etc etc. so my gearing is 14/41... What means not as good bottom end but better top end yes even so i get to around 56mph it starts to vibrate a little and keeps going to around 70mph then it sounds like your going to hit the limiter but i can squeze another 15mph out of it making it 85mph but the thing shakes like a bitch! And will not get past this mark. Before the rebuild i got 102mph from the stock gearing! So wtf. The jetting is correct ticks over fine. The bottom ebd power is great! Power wheelie in second and hops a little in 3rd what is not right either im confused any help?