The 3-Speed Universal Bike is designed to enhance your riding experience by converting a traditional bicycle into an e-bike. ADJUSTABLE SPEEDS: Customizable grips make it easy to adjust the speed. THREE SPEED SETTINGS: Low, medium and high speed options to suit your riding needs. Versatile compatibility: Imported Hall components for smooth acceleration and stable performance, suitable for 3-wheel and 2-wheel bikes with 22mm handlebars. This product is backed by a vendor's warranty to ensure the quality and reliability of your e-bike adventure.