♨Welcome to Rowya store, our products are sent from the US and our logistic carrier partners are FEDEX and UPS. You only need 4-7 days to receive the package. After you receive the item, if there is any question,please feel free to contact us. We will provide you with quick and effective help and compensation in the first time. Your satisfaction is our greatest motivation. In addition, your order has the protection provided by Amazon. You can get 100% protection. Product Description This product can be used to convert bicycles into electric vehicles. Name: Electric Bike Conversion Kit Specifications: Fit For:22-29 inch ordinary bicycle Rated Voltage:24V or 36V(you choose) Rated Power:250W Flywheel Teeth:16 Rated Speed:3300 rpm Reduction Ratio:9.78 Features -Environmentally friendly material, durable and easy to operate. -This kit is suitable for installation on regular bicycles of 22-29 inches. -This kit is not suitable for modification in special models and variable speed models. Note -Without battery and charger!!! -Due to the manual measurement,there might be some error. Package Included 1 x Motor 1 x Controller 1 x Motor Bracket 1 x Light 1 x Chain 1 x Electric Door Lock 1 x Flywheel 1 x Extended Shaft 2 x Connector 1 x Charging Interface 2 x Speed Control Switch 2 x Handle 5 x Plastic Insert 10 x Copper Plug 2 x Steel Plate 4 x Screws 4 x Ring