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 Rated Power:250W Flywheel Teeth:16 Rated Speed:330rpm/min 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.
eBay