Marin Rift Zone 24" JR Bike Real Suspension. Real Trail. Right Size. Kids who are ready for singletrack and bike parks need a bike that can keep up, not a scaled-down toy. The Rift Zone JR 24" is a genuine full-suspension trail bike designed around riders who are ready to push their skills on actual terrain. It runs the same Multi Trac suspension platform and 6061 aluminum frame architecture as the adult Rift Zone, with 130mm of rear travel, hydraulic disc brakes, and a 11-speed drivetrain. Swap the wheels to 26" and add longer cranks as your rider grows, and the bike grows with them. Features 24" wheel size with clearance for 26" wheels fits kids ready to move beyond entry-level terrain, with a built-in upgrade path as they grow Series 3 6061 aluminum frame with Multi Trac suspension platform delivers 130mm of rear travel and the same linkage design as the adult Rift Zone, scaled for younger riders X-Fusion Velvet RLC fork, 130mm travel with compression and rebound adjustment on a 100x15mm thru-axle for real front-end control on technical terrain X-Fusion O2 Pro R rear shock, custom tune air-sprung and tunable to match the rider's weight as they develop Tektro hydraulic disc brakes consistent stopping power in all conditions with low maintenance demands Shimano 11-speed drivetrain with internal rear derailleur routing for a clean cockpit and snag-free riding on the trail Specifications Wheel Size24" (fits up to 26")Frame Material Series 3 6061 Aluminum Drivetrain11-Speed Brake Type Hydraulic Disc (Hand Brake)Training Wheels Not Compatible | Marin Bikes | Rift Zone 24" Jr Bike Green/yellow Fade