Why buy from us? We take our motorized bicycle engine kits seriously. Helio has been INSTALLING (most companies just sell) these kits for over 9 years and we know what components you need! We only sell 4 stroke and 2 stroke kits that work! Don’t fall into the Ebay Trap. You get what you pay for in quality. If we sell it, we have had great experiences with the kit/part on our own/customers bikes. Helio is one of the only Motorized bike company that offers the Honda GXH50 motor in our production line. We even offer a kit with the Honda. Our focus is to supply you with the very best quality kit at your price point.