Just want to stick my 10p's worth. My Super is fully derestricted and has an 85cc Big Bore Kit, Big valve matched head, high lift cam, 24mm carb with 105 jet, Naraku race variator and Dr pulley 9.5g sliding rollers, race clutch, 1500 torque spring and a Technigas freeflow exhaust. It will not go above 50mph because of the gearing and as of the time of writing this there is no gearup kit for this scoot. Kymco use their own final drive gears which are not standard GY6 gears. BUT..... it gets to 50mph very quickly!!! There are only three restrictions on the super 84t which are variator boss has a shoulder on it, main jet needs to go up a couple of sizes and CDI rev limiter... thats it nothing else! Hope that helps because anyone trying to break the 50mph magic number... best of luck! I think I should really have bought a 125cc :-)