As kids get older, their bikes become more than just cul-de-sac cruisers. They start going further, riding harder, and exploring tougher terrain. All this requires a bike that is at once versatile -equally at home on the sidewalk as it is on the dirt shortcut on the way to school- and durable (because let's face it: Kids like to push their toys to their limits!). If all this sounds like a true story to you, then the Sonic 24 is the bike for your child! The Supalite aluminum frame and double-walled wheels can take a trolling and keep on rolling, the Shimano 7-speed drivetrain provides low maintenance gearing for spinning uphill and smiling down, while the semi-knobby tires provide a very happy medium for fast riding on pavement and grippy bite on that aforementioned shortcut.