Maybe I could put a front and rear hub, both 250s or 350s and overvolt the 48V to 52V. I am just wanting to play and I probably will link them as pedal assist with a torque sensor in the crank. I know which style motors I want but not sure on the rating. I know how to build the battery and believe I have the information to set the system up. It will have torque arms. Did I mention torque arms? I know which display I want and think which charger I want. We will see. The rear brakes will be converted to hydraulic and both motors hooked up with regenerative braking which will greatly increase my stopping power. If I have forgotten something, Grin from Canada will assist me in picking up the extras. Thanks for all your help guys. Be Well, Bluesfrog.