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ZoomPrevelo
Alpha Three 20" Kids Bike - Blue (2026)
- Spread the cost over 6, 12, 24 or 36 months
- 0% APR Finance available on 6, 12, 24 months for orders over £250
- 0% APR Finance available on 36 months for orders over £1500
- Pay as little as 10% deposit
The Alpha Three MkIII 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-ready double-wall rims with 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.
- Flat-mount rear caliper tucked within the frame for protection.
- At just under 17 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.
Specification:
Frame: Lightweight Triple Butted 6061 Aluminum. Low Center of Gravity, Kid Specific Geometry. Internally routed Cables. 3D Forged Dropouts. Dropper Post Compatible.
Fork: Bladed Aluminum Legs with 1 1/8" Aluminum Steer tube
Seat Clamp: Aluminum Quick Release
Brakes: Promax Hydraulic Disc Brakes
Derailleur: Microshift Acolyte Super Short with Springlock chain retention system
Shifter: 8 speed Microshift Acolyte Quick Trigger w/ Indicator
Freewheel / Cassette: 8 speed 11-38t Microshift H083
Crank: HEIR Lightweight Aluminum 3 piece. Narrow Width, 110mm length
Chainring: 28T Narrow Wide with aluminum chain ring guard
Bottom Bracket: 68x113 Hollow Square Taper with Sealed Cartridge Bearings
Headset: Integrated Threadless Sealed Cartridge
Rims: Doublewall Aluminum, tubeless compatible
Front Hub: 20h Aluminum Sealed Cartridge with Quick Release Skewer
Rear Hub: 20h Aluminum Sealed Cartridge with Hex Key Skewer
Tires: Kenda Small Block Eight 20 x 1.5 60 TPI
Saddle: Prevelo 1pc Junior
Seat Post: 31.6mm alloy 1 piece
Handlebar: HEIR Riser Lightweight Aluminum 31.8 clamp, 19mm grip 560mm wide, 25mm rise
Stem: Prevelo 1pc bar/stem with knee friendly design
Grips: 110mm Black Rubber 19mm diameter Lock-On
Pedals: Composite Big Kid, 9/16 LONG Crmo Spindle
Version: MK III
The Alpha Three MkIII 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-ready double-wall rims with 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.
- Flat-mount rear caliper tucked within the frame for protection.
- At just under 17 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.
Specification:
Frame: Lightweight Triple Butted 6061 Aluminum. Low Center of Gravity, Kid Specific Geometry. Internally routed Cables. 3D Forged Dropouts. Dropper Post Compatible.
Fork: Bladed Aluminum Legs with 1 1/8" Aluminum Steer tube
Seat Clamp: Aluminum Quick Release
Brakes: Promax Hydraulic Disc Brakes
Derailleur: Microshift Acolyte Super Short with Springlock chain retention system
Shifter: 8 speed Microshift Acolyte Quick Trigger w/ Indicator
Freewheel / Cassette: 8 speed 11-38t Microshift H083
Crank: HEIR Lightweight Aluminum 3 piece. Narrow Width, 110mm length
Chainring: 28T Narrow Wide with aluminum chain ring guard
Bottom Bracket: 68x113 Hollow Square Taper with Sealed Cartridge Bearings
Headset: Integrated Threadless Sealed Cartridge
Rims: Doublewall Aluminum, tubeless compatible
Front Hub: 20h Aluminum Sealed Cartridge with Quick Release Skewer
Rear Hub: 20h Aluminum Sealed Cartridge with Hex Key Skewer
Tires: Kenda Small Block Eight 20 x 1.5 60 TPI
Saddle: Prevelo 1pc Junior
Seat Post: 31.6mm alloy 1 piece
Handlebar: HEIR Riser Lightweight Aluminum 31.8 clamp, 19mm grip 560mm wide, 25mm rise
Stem: Prevelo 1pc bar/stem with knee friendly design
Grips: 110mm Black Rubber 19mm diameter Lock-On
Pedals: Composite Big Kid, 9/16 LONG Crmo Spindle
Version: MK III
