Originally Posted by swamp2
The radius of the drive wheel is part of the torque multiplication just as gear ratios are. They belong in that calculation as well as the one to get vehicle speed.
Probably not a big correction but a small error if you left it out.
I would have thought the radius of the drive wheel determines the actual horizontal force applied at the contact point of the wheel?
Force at the wheels (as opposed to torque) is probably the better parameter to graph anyway, as it directly relates to acceleration...