Upgrading a Kids’ Motorbike
The Razor RSF350 is a pint-size electric motorbike for kids. But with a top speed of 14 mph (9 mph with an adult riding it), it’s not exactly fast. JoelCreates figured it could use a few more horsepower, so he outfitted it with an overpowered battery pack and motor controllers. Then, he put his mini-mini to the test in a drag race.