BMX racing is a fun sport for young people. For kids, the basic bike should have 20-inch wheels. Riders under age six can use whatever type of bike they have, even if it’s not a true BMX freestyle bike. These little folks might still be riding bikes with wheels as small as 12-inches. Some tracks even have races for Big Wheel bikes.
A cruiser or mountain bike with 24-inch or 26-inch wheels might be okay, too, but check ahead of time with your local track for advice. Many tracks will let you race a mountain bike in the “Cruiser” class.