Mega Moto 80 minibike goes 70+ MPH

Mega Moto 80 minibike goes 70+ MPH Swapped out the gear ratio from 4.46 to 1 ratio to a 4.78 to 1 ratio on the 223cc powered Mega Moto 80 Minibike to see if it would be faster using a 14 tooth sprocket versus a 15 tooth clutch sprocket on the Noram Cheetah clutch.