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