I bought the 80 cc motorized kit and light from BGF. I received the light today, and realized that it was one of those friction lights that rub the tire for power. I feel although this will just get in the way, and break. According to BGF I cannot bypass the friction piece and hook the light directly to the engine. Why is this, and what makes it different then the light being sold that will hook up to the engine? Also, is there a way around this? I do not want to buy/wait for a new one.