Currently the shaft system has become well known with far more conveniences. Earlier bikes used to have leather belts but now are generally made of rubbers. Consequently these belts act very just like a metal chain. The 125cc Lifan Mini Bike Engine brings together power and performance like no other. https://pitbikeengines71420.blogsvirals.com/34171472/the-best-side-of-bike-engines-for-sale