The Nukeproof Tracker 20" (20 inches) is a children's mountain bike designed for young riders typically measuring between 1.20m and 1.35m. Launched as part of the brand's new budget Tracker range, it marks the stage where children transition from casual riding to real trail mountain biking. Main features • Sturdy and lightweight frame: Built from 6061 aluminum alloy with a rigid fork to limit weight while remaining shock-resistant. • Suitable drivetrain: Equipped with a 1x8 speed drivetrain (often Microshift Acolyte) making it easier to learn gear shifting with a single shifter. • Safe braking: Integrates real Tektro mechanical disc brakes with JL-510RS brake levers specially sized for small hands. • Wide tires: Fitted with knobby tires (2.6" width) providing excellent grip and good shock absorption on dirt, forest paths, or gravel.