ZuluFour

Size Guide
Sizing

Prevelo Bike Sizing

Getting your kids the right size bike is important and, fortunately, also easy. You just need two pieces of information about your little rider:

  • Inseam
  • Rider Experience

Measuring Inseam

  1. Have the rider stand against a wall, hold a book between their legs so that it is firmly against their crotch (the same place their bicycle seat will be).
  2. Measure the distance from the floor to the top of the book.

Rider Experience

Children who are learning are more sensitive to bicycle height than children who already know how to ride a bike. For this reason, our recommendations for bicycle sizing vary slightly based on the experience lever of the rider. The chart below takes into account the fact that experienced riders tend to adapt better to a bike that is slightly larger. For this purpose we categorize young riders as either "Learners" or "Pedalers"

  • Learner: riders who either have not yet learned to ride a pedal bike, or are still frequently putting their feet on the ground while riding.
  • Pedaler: riders who can ride confidently and only put their feet down to stop.
Model Wheel
Size
Approx. Rider Age
(years)
Learner Inseam
(inches)
Pedaler Inseam
(inches)
Alpha Zero 12" 1½ + 12.5 to 16.5
Alpha One 14" 3 to 5 13.5 to 16.5 13 to 16.5
Alpha Two 16" 4 to 6 16.5 to 22
15 to 22 
Alpha Three 20" 5 to 9 20 to 23 17.5 to 23
Alpha Four 24" 7 to 11 24.5 to 28 23 to 28
Zulu Three 20" 5½ to 9 22 to 26 20 to 25
Zulu Four 24" 8 to 11 25 to 29 23 to 29
Spec

11
Zulu Four: ETA November 25, 2019
Zulu Four HEIR: ETA November 25, 2019


Wheel Size
24 inches

Approx. Age Range
8 to 11 years

Speeds
10 or 11

Trail Optimized


$15 Shipping
in the Continental USA

Shipping Terms

Checked and Tuned
Each bike is checked & tuned prior to shipment.

Easy Assembly
Includes all the tools you need & easy instructions.

1% for the Planet
Prevelo donates 1% of sales to planet worthy causes.

Note: Final component spec is slightly different from the image above. See the "Components" section below for a detailed break down of the components included.
The Prevelo Zulu Four packs high performance mountain bike features into a 24-inch wheel size package. Every component is the real deal and is carefully chosen to provide the best performance and fit for young riders ready to tear up the trails. It features:
  1. Prevelo confidence inspiring low and narrow geometry. Prevelo geometry keeps the rider low, balanced and in control.
  2. Zulu specific slack head tube angle and short chainstays keep the bike controlled over rough terrain.
  3. Lightweight aluminum frame with custom formed 6061 triple- butted tubing and TRAPT™ downtube profile.
  4. Available with a lightweight HEIR® 80mm travel airfork with HM Carbon Fiber / AL6061 lowers & AL7050 hard anodized 30mm stanchions and adjustable rebound, lockout and compression and 15mm Thru-Axle.
  5. Stealth cable routing and stealth dropper post ready.
  6. Available with tubeless ready wheels and tires.
  7. Rear hub with 12mm Thru-Axle
  8. Flat mount rear brake caliper keeps the rear brake caliper tucked away and protected between the rear chain stays.
  9. Tektro front and rear hydraulic disc brakes.
  10. Wide Span Shimano drive trains and available with either SHIMANO DEORE SHADOW RD+ 10-speed or SHIMANO SLX 7100 12-speed 
  11. Available 10-51T wide span gearing gives riders plenty of range to spin up tough hills.
  12. Kid engineered direct mount crank. All Prevelo cranks are sized specifically for each model bike, down to the millimeter.
  13. 95% assembled. Just install the handlebar, seatpost, frontwheel, and pedals.

Kid Centric Features

prevelo bikes kids mountain bike crank

Kid Engineered Crank

prevelo zulu kids mountain bike disc brake

Tektro Hydraulic Disc Brakes with Flat Mount Rear Caliper

prevelo zulu three kids mountain bike internal cable routing

Internal Cable Routing


Prevelo Confidence Inspiring Geometry
Slack, Long and Low

 

 

prevelo kids mountain bike 20 boost rear hub

Rear Hub with 12mm Thru-Axle

prevelo 20 kids mountain bike carbon air fork

Available Carbon Lower Airfork with Adjustable Rebound

zee derailleur

Shimano SHADOW RD+ Drivetrain with Wide Span Gearing

kid jumping mountain bike

0% Digital
100% Real

 

prevelo zulu four 24 kids mountain bike

#zulufour

Customer Reviews

5 Based on 11 Reviews
5 ★
100% 
11
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Customer Photos
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Filter Reviews:
    RM
    03/25/2019
    Ryan M.
    United States

    Amazing Product and value!

    The Zulu four is an amazing bike! This was a Christmas gift for my 6 year old - and it has helped to transform his riding! Before he was a solid rider on his 16” rigid single speed, we could do 4-6 miles rides, but there was many walking breaks. Now he flies! We’re up to 9-10 mile rides and he is pushing most of the hills and taking single track like a champ. He begs to ride more and is taking on obstacles like a stud. It did introduce a problem though, my 4.5 year old is chanceless of keeping up on the 16” hand me down bike and I’m eying the Zulu 3 20” for him. And Mom also needs and upgraded bike to keep up with him....

    Ryan M. verified customer review of Zulu FourRyan M. verified customer review of Zulu Four
    KJ
    08/18/2017
    Kelly J.
    American Fork, Utah

    Confidence Inspiring!

    This is the best kids hard tail mountain bike I've been able to find for under $1000 for my 9 year old son. The geometry on this bike is dialed for young riders! Low stand over and low bottom bracket equals more confidence and ability to control the bike. Correct width handlebars get your kid in a good riding position and improves handling. My son has been having a blast since throwing a leg over this bike. It's light enough for him to climb on real single track trails and built for shredding back down. Hydraulic disc brakes give him plenty of stopping power and keep his little hands from getting sore and tired. Real air fork, grippy tires, crisp shifting and plenty of gears to keep up with mom and dad. I'd recommend this bike to anyone looking to get their kids out on the trails! Thanks for making a proper mountain bike that works for the groms!

    C
    02/19/2019
    Chessler
    United States

    Great Kid Specific Geometry/Specs

    My 9 year old was immediately comfortable on the bike which was an upgrade from a 20" wheel bike he had previously. No issues with order processing/shipping and assembly was easy.

    DM
    02/07/2019
    david m.
    United States

    Superb kids hardtail

    The drivetrain is well speced. The brakes easily adjust for small hands. The fork is responsive for my 55lb rider. Frame is a beauty. The shipping was fast and customer service was top notch. Very pleased with this purchase. My son has a 22" inseam and is able to tear up the singeltrack on the Zulu. If you are in the market for a quality 24" hardtail that won't require immediate upgrades then this a great choice. Setup took all of about 15 minutes. Everything was tuned and setup prior to shipping. Four bolts for the handlebars, adjust the brake levers, throw on the pedals and you are ready to roll.

    JS
    01/25/2019
    Jayden S.
    United States

    Zulu Four Heir

    Outstanding Customer Service! Thank you Jacob for the extra effort getting my son fitted to his new bike. He loves it.

    Jayden S. verified customer review of Zulu Four

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