Alpha Three

177 reviews

Color: Speed Silver



Size Guide

Size Guide and Model Comparison

What the Press Says about the Alpha Three

The Alpha Series from Prevelo are neighborhood bikes that punch above their intended use. The geometry lends itself to ripping up trails as much as it does flying around the cul-de-sac. Everything is spot on from the tires, to the brakes to the handlebars.

The Bike Dads

For parents interested in introducing gears at an early age, and for kids who have already mastered pedaling and bike handling, the Prevelo Alpha Three is the ideal 20 inch bike.

Rascal Rides

Exceptional - 5 Stars

Exceptional from frame to wheels, brakes to handlebars, the Prevelo Alpha Three is the ultimate ride for young, adventurous riders.

Two Wheeling Tots

1 of 3

Packed with mega smart features

Prevelo Bikes-Alpha Three-Speed Silver

Available Options

  • Rider Name Lettering

    Customize your Prevelo bike with the rider's name in custom-colored lettering.

    Installed before shipping.

  • HEIR Footport Alloy Pedals

    Sealed Cartridge alloy pedals with safety domed pins that are less likely to hurt shins in a scrape.

  • HEIR Darkness Deleter Light Set

    200 Lumen Headlight

    15 Lumen Taillight

    2 x USB charging cables

    Easy to strap onto bike.

  • Kickstand

    • Lightweight aluminium alloy
    • Non-slip clamping surface
    • Custom sized to fit Prevelo Bikes

    Installed before shipping.

  • Bell of Justice

    Made of brass for a pronounced sound.

    Installed before shipping.

  • Custom Colored Grips

    Upgrade the standard black grips to your little rider's favorite color.

    Installed before shipping.

  • bicycle tire

    Optional Wide Tires

    Increases the tire width to 2.1" to give trail explorers more traction when the path gets tough.

    Installed before shipping.

  • Trade-Up Club

    Join the Prevelo Factory Trade-Up Club and when you are ready to move up to your next Prevelo bike, send back your previous bike and we'll give you back 40% of the original purchase price of the previous bike.


The next step.

Prevelo Bikes-Alpha Three-Speed Silver

Alpha Three

  1. Prevelo confidence inspiring low and narrow geometry. Prevelo geometry keeps the rider low, balanced and in control.
  2. Lightweight 6061 aluminum frame with custom formed tubing.
  3. Lightweight aluminum alloy fork with alloy steerer.
  4. Front and rear v-brakes.
  5. Lightweight Allen head front and rear wheel skewers for secure wheel installation.
  6. Three piece crank with squared taper cartridge bearing bottom bracket and ultra narrow Q factor.
  7. Custom made cranks. All Prevelo cranks are sized specifically for each model bike, down to the millimeter.
  8. NEW Microshift 8-speed drivetrain with wide-span 11-38T gearing. Uses a shorter pulley cage without comprising gear ratio width. Because kids’ bikes have small wheel diameters, rear derailleurs on kids bikes hang low and close to the ground. The Prevelo Alpha bikes use smaller cage derailleurs to keep things high and away from the ground.
  9. Microshift Trigger Shifters. Small hands have a hard time using twist shifters. We use reliable silky smooth thumb shifters. They are easy for small hands to operate, and operate just like shifters on high performance bikes.
  10. 95% assembled. Just install the handlebar, seatpost, front wheel and pedals.


    • Speed Silver
    • Braap Blue
    • Party Pink
    • Rapid Red

    Wheel Size

    20 in


    All-purpose Bike


    Paved, dirt paths




    17.8 lbs

    Min Saddle Height

    21.2 in / 540mm

    Max Saddle Height

    26.4 in / 670mm


    32.9 in / 835 mm


    Kenda Small Block Eight 20 x 1.5"


    Prevelo Big Kid


    Microshift Acolyte Super Short


    8 speed 11-38t Microshift H083


    HEIR Lightweight Aluminum 3 piece. Narrow Width, 110mm length, 138mm Q factor


    Forged Aluminum V-Brakes with Junior Sized Brake Levers
    View product