[Dick Linn]

I think it would be useful for you to review the various forces and terms and come to grips with how they relate to each other. I am not an engineer, so take this with a grain of salt. Ultimately, it takes a certain amount of energy to propel an object at a certain speed through some medium (air?) with some system losses due to friction and whatnot. How you get there can vary. You may have barely enough torque to get things moving and accelerate, but plenty of power to move fast eventually ( a 50 cc. road racing motorcycle). Why do the land speed record vehicles take forever to accelerate to top speed? Why do big diesel trucks shift through 3 gears to get to 15 MPH, or so it seems?

Anyway, do dig around. If you can find some advice on what kind of power you need to overcome friction and stuff to propel a bike at 30 MPH, that is good. I never weighed 200 pounds and it's been awhile since I've propelled myself at 30 MPH.