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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Zulu Two MKII

124 reviews
$649.00
Generation
MKII
MKI
Version
Color: Speed Silver
Size
Guide Assembly
Options
Equipped with
Balance Tec
Thru Tube

Measurements

Components

Size Guide

Zulu Two MKI vs. MKII

The Short Version


The Zulu Two MKII is the latest version with the newest upgrades. The Zulu Two MKI is a previous generation. The Zulu Two MKII is lighter, and has the BALANCE-TEC conversion system, THRU-TUBE frame and new compact drivetrain. 

Geometry and Specifications Comparison

Feature Zulu Two MKI Zulu Two MKII Difference
Weight 17.15 to 17.95 lbs 15.1 to 15.8 lbs ↓ 2.05-2.15 lbs lighter
Minimum Saddle Height 18.1 in / 460 mm 17.7 in / 450 mm ↓ 0.4 in / 10 mm lower
Maximum Saddle Height 25.2 in / 640 mm 25.2 in / 640 mm No change
Gain Ratio 3.8 3.85 ↑ 0.05 higher
Wheelbase 30.5 in / 775 mm 30.15 in / 766 mm ↓ 0.35 in / 9 mm shorter
Chain Stay Length 12 in / 305 mm 11.69 in / 297 mm ↓ 0.31 in / 8 mm shorter
Seat Tube Angle 74° 76° ↑ 2° steeper
Head Angle 66° 66° No change
Effective Top Tube Length 15.3 in / 389 mm 15.75 in / 400 mm ↑ 0.45 in / 11 mm longer
Bottom Bracket Height 7.3 in / 185 mm 6.9 in / 177 mm  ↓ .4 in / 8mm lower
Stack 14.0 in / 356 mm 15.07 in / 383 mm ↑ 1.07 in / 27 mm higher
Bottom Bracket Drop 0.4 in / 11 mm 0.75 in / 19 mm ↑ 0.35 in / 8 mm more drop
Seat Tube Length 7.9 in / 200 mm  10 in / 255 mm ↑ 2.1 in / 55 mm longer
Standover 15.6 in / 395 mm 15.6 in / 395 mm No change
Q factor 138 mm 146 mm ↑ 8 mm wider
Reach 10.39 in / 264 mm 10.39 in / 264 mm No change

Color Options

Model Available Colors
Zulu Two MKI Bodacious Blue, Speed Silver
Zulu Two MKII Bodacious Blue, Speed Silver, Pedal to the Metal Pink

Change: MKII adds "Pedal to the Metal Pink" as a new color option

Component Differences

Component Zulu Two MKI Zulu Two MKII Change
Frame 6061 Aluminum with Internal Cable Routing THRU-TUBE™ Lightweight 6061 Aluminum with Internal Cable Routing New THRU-TUBE™ design
Seat Clamp Aluminum with Toolless Adjustment Prevelo TallClamp with Toolless Adjustment Upgraded to TallClamp
Brakes Tektro M281 Hydraulic Disc Promax DSK 940 Hydraulic Disc Brand change
Chainring 25t Aluminum with Double Aluminum Guards 18t Aluminum Smaller chainring, upgraded compact and lightweight design
Freewheel / Cassette 14t M30 threaded 10t 1pc driver Smaller rear cog, upgraded design
Bottom Bracket 68x113 Square Taper with Sealed Cartridge Bearings 68x113 Hollow Spindle Square Taper with Sealed Cartridge Bearings Upgraded to hollow spindle
Headset 1⅛" Internal Threadless Integrated Sealed Cartridge Bearing Upgraded design
Front Hub 16h Forged CNC Bolt On 20h 9x100 Sealed Cartridge Bearing ↑ More spokes, sealed bearings
Rear Hub 16h Forged CNC Freewheel 20h 110mm Sealed Cartridge Bearing Cassette ↑ More spokes, cassette design
Tires Innova MTB 16 × 2.1 Kenda Booster 16 × 2.2 Brand change, slightly wider
Saddle Prevelo Little Kid HEIR Frame Hugger™ Little Kid - Alloy Reinforced Upgraded design, lighter weight, lower stack
Seat Post ⌀27.2mm alloy 2-bolt ⌀27.2mm alloy 1 piece Simpler design, lighter weight, lower stack
Handlebar Lightweight Aluminum 25.4, 520mm wide, 35mm rise HEIR 19mm Riser Bar 31.6 clamp, 520mm wide, 25mm rise New HEIR design, reduced rise
Stem Lightweight Aluminum 25.4, 30mm Extension Lightweight Aluminum 31.6, 35mm Extension ↑ Wider clamp, longer extension
Grips 90mm Black Rubber, 19mm Diameter HEIR 110mm wide 19mm Lock-On ↑ Wider, HEIR lock-on design

Key Feature Changes

Major MK II Innovations

THRU-TUBE™ Frame Design:

  • Keeps riders lower to the ground for improved confidence
  • Enables the lower minimum saddle height (17.7" vs 18.1")
  • Improves pedaling ergonomics while maintaining safety

BALANCE-TEC™ System:

  • First-ever balance-bike-to-pedal-bike conversion that maintains pedaling performance
  • Features self-extracting crank and bottom bracket shields that double as footrests
  • Integrated chainstay key allows chain removal without breaking the chain
  • Enables conversion between pedal and balance modes in minutes without special tools

Precision Adjustable Dropouts:

  • Provides precise chain tension control
  • Makes tire changes easier by maintaining chain tension and brake adjustment

Drivetrain Optimization:

  • Smaller rear cog (10t vs 14t) paired with smaller chainring (18t vs 25t)
  • Maintains similar gain ratio (3.85 vs 3.8) while reducing weight

Other Significant Changes

Weight Reduction: 2+ pound weight savings (15.1-15.8 lbs vs 17.15-17.95 lbs)

Geometry Refinements:

  • Lower minimum saddle height (17.7" vs 18.1") for younger/smaller riders
  • Increased bottom bracket drop for lower center of gravity
  • Shorter chainstays and wheelbase for improved maneuverability

Component Upgrades:

  • More spokes in wheels (20h vs 16h) for improved durability
  • Sealed cartridge bearings throughout for better longevity
  • Upgraded saddle, grips, and cockpit components
  • Kenda Booster tires (replacing Innova) with slightly wider profile

Features Removed in MKII

  • MKI had double aluminum chainring guards that were removed in MKII and replaced with a chainguard.

What Stayed the Same

  • 16" wheel diameter
  • 60mm travel fork option with same specifications
  • Hydraulic disc brakes (though brand changed)
  • Recommended inseam range (16" to 22")
  • Aluminum frame material (6061)
  • Internal cable routing

The Most Advanced 16" Mountain Bike

Packed with mega smart features

Prevelo Bikes - Zulu Two - Standard

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.

Balance-Tec™

The Zulu Two 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

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.

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.

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.

Release The Stoke.

What the Press Says about the Zulu Two

ULTIMATE KIDS MOUNTAIN BIKE

This bike was truly designed from the ground up for kids allowing them to progress and explore trails like never before.

The Loam Wolf

Bike Awards 2020

The most trail-capable 16-inch kids’ bike we’ve ever tried.

Bicycling Magazine

Exceptional - 5 Stars

Got yourself a baby shredder? Then they likely need the Prevelo Zulu Two!

Two Wheeling Tots

Gold A'Design Award

Zulu Two Heir Mountain Bike For Kids by Prevelo Bikes is Winner in Baby, Kids' and Children's Products Design Category, 2021 - 2022.

A'Design Awards

This bike is exactly what we were looking for. The fork is truly incredible with its ability to soak up bumps with lightest of weight riders. Wide rims and wide tires offer amazing traction and enhance the shredability with its longer wheelbase, 67 degree HA and hydraulic dis brakes. The kids specific handlebar, grips and cranks are welcome features for these tiny rippers. If your little 4/5 year wants to descend MTB flow trails with you...this bike is the answer.

The Bike Dads

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

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Prevelo Bikes - Zulu Two - Standard

Zulu Two

From $649.00

The new Zulu Two 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 Two also features:

Version

  • Standard
  • HEIR

Color

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

Wheel Size

16 in

Type

Trail Bike

Use

Dirt path, single-track

Speeds

Single

Weight

15.1 to 15.8 lbs

Min Saddle Height

17.7 in / 450 mm

Max Saddle Height

25.2 in / 640 mm

Wheelbase

30.15 in / 766 mm

Tires

Kenda Booster 16 × 2.2

Saddle

HEIR Frame Hugger™ Little Kid - Alloy Reinforced

Derailleur

-

Cassette

10t 1pc driver

Crank

Lightweight Aluminum 3 piece. Narrow Width, 95mm length, 146mm Q factor

Brakes

Promax DSK 940 Hydraulic Disc
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