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Razor Quad 4-wheeler battery 36V upgrade from 24V

Background information on the Razor Quad Experience.

MY son got a Dirt Razor quad 4-wheeler for Christmas.  He is 7 years old and has been riding the Razor MX350 for 2 years now.  He was excited when he saw lots of youtube videos showing the kids riding it through mud.  He was so excited to find Santa had brought him the exact Razor 4wheeler he had been wanting.  It is the smaller version and not Razor 500.  They don’t call it the “Razor  quad 350” but the motor is 350 watts so I would consider it the 350 like the MX350 dirtbike has a 350 watt motor.
Side note:  we have 2 MX350s Razor Dirtbike Motorcycles and they are amazing.  They have held up for over 2 years with use everyday.  The information here could easily be applied to upgrade the dirtbike to 36V too in my opinion. Finding a spot for the 3rd battery will take some work.

I have seen some advertisements online that show the razor quad will go 10mph straight out of the box without upgrading the motor or battery.  I can say in full confidence this is NOT true and it only goes about 6 mph (7 possibly) on the pavement if you don’t make some modifications to the battery.  My son has been riding the dirtbike since he was 5 and he felt the speed was a little slow.  It was slower than the dirt bike when he raced his brother.   I decided to upgrade the batteries and looked for online information. It was a little harder to find information compared to when I upgraded their power wheels artic cat to 18V a couple of years ago.  I decided to create this video and post to show others how to upgrade the quad when they start asking “how fast does the razor quad go?” and want to make it go faster.
After the upgrade we measured the top speed at 10mph, which was just right for the size of the quad.  I would think that increasing any more speed would require a wider wheel base for stability.  Razor makes a great product and we keep coming back for more.  In the case of the 4 wheeler, I think they made it a little slow but this upgrade makes it well worth the money.  I made this list of instructions for upgrading the dirt quad by razor to help.

Below is a list of items you will need to upgrade the Razor 4 wheeler to 36V

Must Have Parts:


Batteries Option 1: (Easiest Option – comes with wiring harness)

Battery Option 2: (Batteries separate from wiring harness)



Then choose pre-made harness or fuse cables


List of tools needed for the razor 4 wheeler mod project



Optional Accessories for the dirt quad mod project


The razor site has this information listed for the razor dirt quad.  Notice they don’t mention the speed on here.  We tested it and found 6 mph to be the max speed with the stock 24V and 350W battery.

Don’t Compromise Adventure

New and improved Razor Dirt Quad with fresh black styling and design. When the backyard becomes too groomed and the sidewalk too smooth, the Dirt Quad enters with unlimited adventure. The four-wheel Dirt Quad is built strong and sturdy to conquer tough trails and big bumps.

  • Up to 40 minutes of continuous use.
  • Shatter-resistant plastic fairings and powder coated tubular frame for all weather durability.
  • High torque motor and gearing.
  • Twist-Grip acceleration control.
  • Hand operated rear disc brake.
  • 13 inch pneumatic knobby tires.
  • Adjustable riser handlebars.
  • Droop travel rear suspension with coil shock.
  • Front brush bar.
  • Rear carry handle.
  • Space saving vertical storage capability.
  • 24V (two 12V) sealed lead acid rechargeable battery system.
  • Battery charge time: 12 hours.
  • Battery charger included.
  • Assembled Product Dimensions: 43 inch x 24 inch x 31.5 inch.
  • Some assembly required.

Miniature Electric Off-Road Quad

When the backyard becomes too groomed and the sidewalk too smooth, the Dirt Quad enters with unlimited adventure. Another icon in Razor’s line of electric powered off-road vehicles, the four-wheel Dirt Quad is built strong and sturdy to conquer tough trails and big bumps. Don’t compromise adventure. Features a high torque motor and gearing with twist-Grip acceleration control and hand operated rear disc brake, 13 inch pneumatic knobby tires, front brush bar, adjustable riser handlebars, droop travel rear suspension with coil shock, up to 40 minutes of continuous use, and rear carry handle with space saving vertical storage capability. Also includes, shatter-resistant plastic fairings and powder coated tubular frame for all weather durability, and 24V (two 12V) sealed lead acid rechargeable battery system with charger. 12 hours recommended battery charge time.

About Razor

From day one, Razor has focused on providing the very best riding experience, combining cutting-edge technology, high-quality materials and innovation to deliver products designed to suit riders’ evolving lifestyles.

Founded in 2000, Razor quickly became an icon of American culture with the introduction of the now legendary A model kick scooter. The must-have item of the year, the A model continues to be an essential ride for anyone on the go.

Today, Razor offers a full line of award-winning products that inspire and excite riders around the globe. Influenced by our Southern California home, and rooted in popular action sports – from motocross and BMX, to snowboarding, skateboarding and surfing – Razor’s products embody the spirit of freedom and fun.

Technical Details

Color Black
Item Dimensions 31.5 x 24.02 x 42.99 inches
Item Display Weight 201 pounds
Shipping Weight 104.1 pounds
Size One Size

Product Description

Kick up some action with the Razor Electric Dirt Quad, a miniature electric off-road vehicle that’s perfect for trail riding. This compact electric dirt quad offers excellent climbing opportunities and delivers a smooth, enjoyable ride. You’ll joyfully conquer tough trails and big bumps! Best of all, the electric dirt quad’s 350-watt chain-driven motor is both exceptionally quiet and powerful — so you can zip up the trail in a hurry.

Updated: June 30, 2017 — 9:29 pm
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