Latest and Greatest 4G T belt drive for 4 cycle gas engines INSTALLATION KIT for Bicycle Engine: Use a 4 stroke Honda GXH50 or HuaSheng 142F-3 engine to motorize a donor bike;Installan engine using our kit in a few hours and them go 0 to 30 in 6 seconds!!!!4 cycle engine operation, means no gas& oil mix!,Depending on sprocket ratio speeds up to 50Km.Silent T belt transmission No gears; No oil; No noise; No muss; No fuss;Get over 100 miles per gallon of fuel when using small 4 cycle gas engines.V- frame engine mount for that motorcycle look. Yes; we have models that can fit any bike by using rear rack over tire mount.Tear drop gas tank, all controls, chain & sprocket as well as a heavy duty axle included.We supply the complete installation kit: US Patent Pending on our belt drive transmission.The WD distributor supplies the engineand bike or the end usercan supplly his own.We prefer you buy engines direct from HuaSheng to get best quality and warranty. Beware of others in China who want to sell you a brand X generic engine with no name. Makes 2 cycle bike engines obsolute and a thing of the past!4G Installation kits are made by China GAS in our own factory in Changzhou China. Check out our web sites; www.grubeeinc.com www.chinabestexporter.comNOTE: We sell to Wholesale Distributorsonly in min. order quantity of 200 kits. If you are a WD distributor in the motorized bike engine business we want to talk with you! Send us your Co. profile and business plan to receive pricing and WD consideration. Sending your inquiry without your Company Profile and Business Plan will result in no reply back.