And it's just as effortless to set up, use, tune, and keep as any other two-stroke bike engine. So if you need top speed without every one of the parts, tuning, and headache of sup'ing up a bike engine, this eighty/100c BBR Tuning Bike Engine Kit is in your case.????? "Generally the best" - Peter Oster "I've purchased motors off of ebay to save mon