This bike certainly has the looks, but when your child hops on the Pro Thunder 20-inch bike from Huffy, they'll feel the boom of adventure!. This Ion Blue stabilisers!. The bike includes front and rear steel sidepull caliper brakes, keeping your rider in control. The simple binder bolt makes height adjustments a breeze for growing riders. The Pro Thunder 20-inch bike is just what your child needs for outdoor adventure!.