Revvi Twelve Kids Electric Bike. METAL FRAME AND RUBBER TYRES. A super light electric-powered motor bike that has been specifically designed for kids, Weighing in at only 9kg’s. Start them young using the bike as a conventional balance bike with its specially designed free wheel system. Then watch them improve and progress onto the slow speed setting (5mph) balancing on their own using the foot pegs. Perfecting there throttle control at the same time using the bikes twist throttle. Once they are confident using the slow speed setting they can then progress to the fast speed setting (10mph). Features hybrid tyres suitable for on and off road use & a chain-driven motor that delivers reliable performance. 2 year old riders should ride without power. 3-4 year old rider should ride without power or using slow speed setting. 5-6 year old riders can use the fast speed setting.