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Alpha Two Complete Bike by Prevelo
Highlights

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Product Details

Hook

Light, fast, and ready for real freedom.

Identity

The Alpha Two MK III is a premium 16-inch kids complete bike built for young riders stepping confidently into pedaling independence. Designed for ages 4 to 6, it blends street-friendly efficiency with dirt-path curiosity, wrapped in geometry and components scaled precisely for smaller bodies. This is not a beginner toy bike. It’s a progression-first machine for kids who already know how to ride and want to go further, faster, and longer.

Energy

Small riders. Big range.

Details

The Alpha Two MK III takes everything Prevelo has learned about youth performance and sharpens it. A triple-butted 6061 aluminum frame keeps weight incredibly low while maintaining durability. The HEIR single-speed drivetrain stays simple and efficient, while sealed cartridge bearings, forged adjustable dropouts, and internal cable routing ensure long-term reliability. With BALANCE-TEC compatibility, the Alpha Two can even convert to balance mode if needed, making it one of the most adaptable 16-inch bikes available.

Specifications

Highlights
• Ultra-lightweight 16" kids complete at just 12.1 lbs
• THRU-TUBE™ frame geometry with low center of gravity
• BALANCE-TEC compatible for balance-to-pedal adaptability
• Dual hand brakes sized specifically for small hands
• Integrated bar and stem for reduced weight and clean cockpit

Technical Specs
• Version: MK III
• Weight: 12.1 lbs
• Frame: THRU-TUBE™ triple-butted 6061 aluminum, internal cable routing, adjustable forged dropouts, BALANCE-TEC compatible
• Fork: Bladed aluminum fork with 1" aluminum steerer
• Brakes: Dual hand brakes with kid-sized levers, independent operation
• Crank: HEIR lightweight aluminum 3-piece, 95mm length, 146mm Q-factor
• Chainring: 18T
• Freewheel / cassette: 10T cassette freewheel • Bottom bracket: 68x113 hollow square taper with sealed cartridge bearings
• Headset: 1" integrated threadless sealed cartridge
• Rims: Lightweight aluminum with shaved sidewalls
• Front hub: 74mm, 16h, aluminum sealed cartridge with Allen key bolts
• Rear hub: 110mm, 16h, aluminum sealed cartridge cassette with hex key bolts
• Tires: Kenda Small Block Eight 16 x 1.5
• Handlebar / stem: One-piece lightweight aluminum bar/stem combo, 460mm wide, 50mm rise, 19mm grip diameter
• Grips: 90mm rubber, 19mm diameter for small hands
• Saddle: HEIR Frame Hugger™ Little Kid, alloy reinforced • Seatpost: 27.2mm alloy one-piece
• Seat clamp: Prevelo TallClamp with toolless adjustment • Pedals: Composite Little Kid pedals with short CrMo spindle, 9/16

Geometry & Fit
• Wheel size: 16"
• Wheelbase: 28.8 in / 730 mm
• Chain stay length: 12.2 in / 310 mm
• Head angle: 69°
• Effective top tube: 15.75 in / 400 mm
• Bottom bracket height: 6.95 in / 177 mm
• Bottom bracket drop: 0.75 in / 19 mm
• Stack: 14.3 in / 363 mm
• Reach: 10.51 in / 267 mm
• Standover: 14.1 in / 360 mm • Q-factor: 140 mm • Saddle height range: 16.9–25.2 in / 430–640 mm • Recommended inseam: 15½"–22" • Max tire width: 2.2"

Care & Maintenance

Built with sealed cartridge bearings throughout for low maintenance ownership. Periodically check brake adjustment, fastener torque, and tire pressure. Keep the drivetrain clean to preserve smooth, efficient pedaling.

Size & Fit

The Alpha Two MK III is designed for confident young riders typically aged 4–6. Its wide saddle height range and kid-specific geometry allow the bike to grow with the rider through multiple seasons of riding.

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