Trek Wahoo 24 Trail is a light and tough kids' bike that's ready to roll off-road. Its sturdy aluminum frame is easy to maneuver as they weave their way down the trail, but rugged enough to handle the tough stuff. A 9-speed 1x drivetrain gives them plenty of gears for pedaling up steep trails, and disc brakes provide next-level stopping power to slow their roll or help them stop on a dime on the way back down. Perfect for riders between 51-59" tall.