What's wrong with this reasoning: The cyclist begins moving forward because the wheels begin to rotate. The wheels rotate because the rider's weight translates to a torque on the wheels. The heavier the rider the greater the torque, therefore the greater the acceleration. So even at very slow...
This caught my interest after someone posted the question on a cycling forum of would a heavy and light cyclist have different accelerations down an inclined plane when coasting from a stop. Many people had observed that heavier cyclists do indeed have a greater acceleration, but I wasn't...