When your little guy is ready to take it to the next level, they need the Diamondback Cobra 20" kids bike. It's built with a durable steel frame that's ready for kid-oriented action, and is more than ready to take a few dings and scrapes. The 40mm suspension fork helps take the sting out of bumpy paths or the big crack in the sidewalk down the road. 6-speed grip shift is an easy introduction to big-kid shifting without being overwhelming. Linear pull brakes have plenty of power and modulation so your little thrasher can get used to braking with his hands instead of his feet.