custom engine

  1. Will'smotobikes19

    How fast will I go?

    72cc big bore engine, 48 mm bore, 40 mm stroke. VM18 carb with OZ reed and UNI filter, windowed piston and banana pipe, also a saucer type high compression head with a NGK B5HS. The bike used will most likely be a Micargi predator. Any speed estimates? I'm 200 lbs and will probably either use a...