The Alpha Three Mk III is a lightweight, 20" geared bike designed for confident young riders ages 5 to 9. Built for adventures on pavement, paths, and light trails, it delivers refined performance, intuitive handling, and a fit that respects growing riders’ proportions. Key features: 8-speed Microshift drivetrain with wide 11–38T gearing and clutched derailleur Promax hydraulic disc brakes for consistent, low-effort stopping Tubeless-capable double-wall rims 20×1.5" Kenda tires Integrated handlebar and stem for a clean, ergonomic cockpit Rider Supply pod mounts for top tube bag compatibility Lightweight aluminum frame with kid-optimized geometry and internal cable routing Mk III upgrades over Mk II: Hydraulic disc brakes Clutched Microshift derailleur for secure, silent chain retention Tubeless-ready wheels for fewer flats and better traction One-piece bar/stem with recessed bolts for a streamlined, snag-free setup Rider Supply pod mounts for strap-free gear carrying At just 16.9 pounds, the Alpha Three Mk III blends low weight with high capability—ready for kids who want to ride further, shift smarter, and stop with confidence.
