That is what got me to build my first 5 speed. That lil bike would climb a wall if it could get traction. High gear was way to much speed for a bicycle(IMHO). 18-22mph is my comfortable cruise speed. I am very uncomfortable over 35, although I have done it many times to keep up with city traffic. The gearing allows me to climb ANY hill and cruise @ 22 without winding out the engine. If the auto shift works out, all the better!