ADULT BIKES

Pre-Order Dates

We do not open pre-orders for a shipment until we have a good amount of confidence in the ship date.  That being said, the estimated delivery dates listed on our website are based on the best information that we have at the moment.  While we cannot control every variable, we pledge to be honest and transparent about lead times.

- The ship dates that are on the website represent our honest estimate of the date that the bikes will ship on.

- Where information is imprecise (for example, referencing a month or quarter), it is because there are unpredictable factors that make it so we cannot credibly be more precise.

- We will work tirelessly to keep the bikes on schedule. It's part of our company culture to be very involved in our supply chain and to be proactive about addressing issues that could turn into delays.

- If something happens that changes the ship date we will communicate quickly and clearly about the delay.

- You can cancel your pre-order any time before your bike ships.


Pre-date changes

Your pre-order date will be included in your order confirmation. If we learn something that changes that date, we will contact you. You might see the pre-order date change on the website. There are a variety of things that could cause a change in the pre-order date including shipping delays, back logs, or moving through different batches. Just because the date on the website changes, does not mean that the date of a pre-order already placed has changed.  Again, if you place a pre-order and the estimated delivery date changes, we will inform you.


Pre-order payment policy

Your credit card will be charged immediately when you place your pre-order.  Your pre-order is cancelable and fully refundable. If you need to cancel a pre-order contact us and we'll take care of it!

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  • 2026 Bicycling Magazine Gear of the Year

  • Bicycling Magazine’s Best 14-Inch Bike of 2025

  • TIME's Best Inventions of 2025

Zulu One MkII

39 reviews
$649.00
Color: Speed Silver
Size
Guide Assembly
Options Assembly
Instructions
Equipped with
Balance Tec

The new Zulu One builds on its legacy of innovation with significant weight reductions and groundbreaking BALANCE-TEC™ conversion system. The patent-pending BALANCE-TEC system is the first-ever balance-bike-to-pedal-bike conversion that doesn't compromise pedaling performance.

The Zulu One features:

  • A new smaller rear cog combined with a smaller chainring reduces weight while maintaining climbing-friendly gear ratios
  • Adjustable rear dropouts enable precise chain tension and wheelbase tuning
  • THRU-TUBE seat tube design increases fit range to accommodate growing riders
  • Sealed cartridge bearings throughout for superior durability
  • High-volume Kenda Booster tires for improved traction and ride comfort
  • Hydraulic disc brakes deliver category-leading control and safety

    The Most Advanced 14" Mountain Bike

    Packed with mega smart features

    Prevelo Bikes - Zulu One - Speed Silver
    Components
    FrameTHRU-TUBE™ Lightweight 6061 Aluminum with Low Center of Gravity Trail Geometry
    ForkBladed Aluminum Legs with 1⅛" Aluminum Steer tube
    Seat ClampPrevelo TallClamp with Toolless Adjustment
    BrakesFront and rear hydraulic disc brakes with Kid Sized Brake Levers
    Freewheel / Cassette10t cassette - Freewheel
    CrankLightweight Aluminum 3 piece. Narrow Width, 85mm length, 146mm Q factor
    Chainring18t Aluminum
    Bottom Bracket68x113 Hollow Spindle Square Taper with Sealed Cartridge Bearings
    HeadsetIntegrated Sealed Cartridge Bearing
    RimsAluminum
    Front Hub9x100 20h Sealed Cartridge Bearing
    Rear Hub110mm 20h Sealed Cartridge Bearing Cassette
    TiresKenda Booster 14 × 2.2
    SaddleHEIR Frame Hugger™ Little Kid - Alloy Reinforced
    Seat Post⌀27.2mm alloy one-piece - Zulu One comes with two saddles and seat posts: tall and short
    HandlebarHEIR 19mm Riser Bar 31.6 clamp, 520mm wide, 25mm rise, 19mm grip diameter
    StemLightweight Aluminum 31.6, 35mm Extension
    GripsHEIR 110mm wide 19mm Lock-On
    PedalsPrevelo Composite Short Spindle, 9/16 Crmo Spindle
    VersionMK II
    Measurements
    Weight13.5 lbs
    Recommended Inseam14" to 17"
    Minimum Saddle Height15.5 in / 395 mm
    Maximum Saddle Height25.2 in / 640 mm
    Gain Ratio3.765
    Max Tire Width2.2 in
    Geometry
    Wheel Diameter14 in
    Wheelbase26.77 in / 680 mm
    Chain Stay Length10.74 in / 273 mm
    Head Angle66°
    Seat Tube Angle76°
    Seat Tube Length6.3 in / 160 mm
    Effective Top Tube13.0 in / 351 mm
    Bottom Bracket Height7.1 in / 182 mm
    Bottom Bracket Drop0.59 in / 15 mm
    Stack12.59 in / 320 mm
    Standover14.2 in / 360 mm
    Q Factor146mm
    Reach9.21 in / 234 mm
    Shipping Weights & Dimensions
    Box Dimensions44.3 in x 7.0 in x 24.5 in
    Shipping Weight21.8 lb

    Specifications and components are subject to variations and change without notice.

    Prevelo Bikes - BALANCE - TEC™ Conversion Kit -

    Balance-Tec™

    The Zulu One features the patent-pending BALANCE-TEC™ system, the first-ever balance-bike-to-pedal-bike conversion that doesn't compromise pedaling performance. The system's innovations include a self-extracting crank, protective bottom bracket shields that serve as footrests in balance bike mode, and an integrated chainstay key that enables chain removal and installation without breaking the chain. This proprietary design allows the bikes to be converted between pedal and balance modes in minutes without special tools while maintaining consistent handling characteristics in both configurations.

    Learn more about BALANCE-TEC

    Kid Optimized Cockpit

    This is where little riders command these steed. It's decked out with ultra small diameter lock-on grips and short reach brake levers that are optimized for small hands.

    THRU-TUBE™ Frame

    The unique THRU-TUBE™ is designed to keep riders low, confident and agile. It unlocks class-leading low seat height and seat height range, and improves pedaling ergonomics while keeping the rider's feet close to the ground.

    Precision Dropouts

    Adjustable rear dropouts provide precise chain tension control. They also make tire changes easier by maintaining chain tension and brake adjustment during wheel removal.

    Compact Drivetrain and Kid Size Cranks

    A new smaller rear cog combined with a smaller chainring reduces weight while maintaining climbing-friendly gear ratios. The HEIR cranks have a narrow Q-factor and short length to be ergonomic for young riders.

    Promax Hydraulic Disc Brakes

    Powerful hydraulic disc brakes give kids plenty of stopping power on long descents.

    Let's do it.

    What the Press Says about the Zulu One

    My daughter's tears of frustration turned to unbridled shrieks of joy, and I understood why a well-designed kids' bike matters.

    Bicycling Magazine

    This Bike opens up longer riding with the anti-fatigue hydraulic disc brakes and slack, low and long stable geometry. All this makes for a very unique bike in the category of 14 inch bikes. We grab the tow ropes every weekend and go looking for fun mellow sustained descending single track. This is the best bike we have tried for adventurous three year olds for this purpose.

    The Bike Dads

    If you are a two and a half or three year old that can ride a two wheeler, I highly suggest you drop some hints to your parents about this.

    Berm Peak Express

    Exceptional - 5 Stars

    The ultimate rig for eager young riders, the Prevelo Zulu One is the best 14 inch true mountain bike we’ve ever encountered.

    Two Wheeling Tots

    9.7

    The Prevelo Zulu is a lightweight, durable, and stylish companion, ensures your kid's biking journey is not just a ride but an unforgettable adventure.

    Cyclist Authority

    Best Kids Gear for Summer Adventures

    This fully-featured mountain bike has all of the pieces to make the intimidating (for kids and parents) transition from kiddo cyclist to kiddo mountain biker.

    Outside

    I’m confident at this point that the Zulu One is built to last for not just one kid, but several.

    NSMB

    Nothing quite like it on the market.

    If you dream of your kids falling in love with singletrack like you have, this bike gets them started on the right track from day one.

    Rascal Rides

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    Prevelo Bikes - Zulu One - Speed Silver

    Zulu One

    $649.00

    The new Zulu One builds on its legacy of innovation with significant weight reductions and groundbreaking BALANCE-TEC™ conversion system. The patent-pending BALANCE-TEC system is the first-ever balance-bike-to-pedal-bike conversion that doesn't compromise pedaling performance.

    The Zulu One features:

      Color

      • Speed Silver
      • Bodacious Blue
      • Pedal to the Metal Pink

      Wheel Size

      14 in

      Type

      Trail Bike

      Use

      Dirt path, single-track

      Speeds

      Single

      Weight

      13.5 lbs

      Min Saddle Height

      15.5 in / 395 mm

      Max Saddle Height

      25.2 in / 640 mm

      Wheelbase

      26.77 in / 680 mm

      Tires

      Kenda Booster 14 × 2.2

      Saddle

      HEIR Frame Hugger™ Little Kid - Alloy Reinforced

      Derailleur

      -

      Cassette

      10t cassette - Freewheel

      Crank

      Lightweight Aluminum 3 piece. Narrow Width, 85mm length, 146mm Q factor

      Brakes

      Front and rear hydraulic disc brakes with Kid Sized Brake Levers
      View product