The Prevelo Zulu Two is a 16-inch kids' mountain bike and the step up from the Zulu One, named to TIME's Best Inventions of 2025. At around 15 pounds it features front and rear hydraulic disc brakes, wide traction-focused tires, and stable low-and-long geometry, with an available HEIR air fork for riders ready for rougher terrain. It's the rare small-wheel bike built to actually rip singletrack. Fits inseams 16 to 22 inches.