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

Zulu One MkII

39 reviews
$649.00
Color: Speed Silver
Size
Guide Assembly
Options Assembly
Instructions
Featured Technologies:
Balance Tec

At a glance

Use
Trails and mountain biking
Wheel Size
14 in
Age
3 to 5 years
Type
Trail Bike
Weight
13.5 lbs(without pedals)
Inseam
14" to 17"

The Prevelo Zulu One is a 14-inch kids' mountain bike and the entry point to the Zulu trail range. Named to TIME's Best Inventions of 2025 and Bicycling Magazine's Best 14-Inch Bike of 2025, at 13.5 pounds it brings real trail capability to riders ages 3 to 5, with front and rear hydraulic disc brakes, slack and stable geometry, and the patent-pending BALANCE-TEC conversion system. Confidence-inspiring from the very first ride. Fits inseams 14 to 17 inches.

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. BALANCE-TEC Compatible. BALANCE-TEC kit sold separately.
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. Requires BALANCE-TEC kit (sold separately)

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 Prevelo Zulu One is a 14-inch kids' mountain bike and the entry point to the Zulu trail range. Named to TIME's Best Inventions of 2025 and Bicycling Magazine's Best 14-Inch Bike of 2025, at 13.5 pounds it brings real trail capability to riders ages 3 to 5, with front and rear hydraulic disc brakes, slack and stable geometry, and the patent-pending BALANCE-TEC conversion system. Confidence-inspiring from the very first ride. Fits inseams 14 to 17 inches.

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
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