My senior design project is to build a hybrid motorcycle. Using a hydraulic engine we are converting the breaking power of the motorcycle into stored energy for use when the motorcycle accelerates from a stop. The question is how to find an appropriate initial acceleration. The acceleration should be more than enough for the motorcycle to overtake friction but it should not be too high so as to waste all of the potential energy too quickly. Knowing that the motorcyle with a rider weighs approximately 500lbs, how would I go about find acceleration? Would I first have to find the angular acceleration of the wheel and convert it to forward acceleration? My question is, what is the simplest way to go about this so that I can repeat the problem for a variety of situations quickly to find the optimal acceleration?