Hi Jon
Thanks for the input, the swing arm is the engine so it could be but is a lot of welding you have trust your life with it, i had thought of just putting a sprocket on where the drum goes to and solid mounting the engine with a new swing arm, but ive decided it not in the spirit of build i true scooter powered stream liner, if a 125cc lambretta could do 121mph back in 1951 I must be able to do better and am willing to try, luckily new 5 speed kits have been released last year(4 gears are standard) So i think this will help a lot along with the taller dia of the air craft rear tire.