I Tested the Razor MX650 72V Upgrade Kit: My Honest Review and Performance Boost Experience

When I first heard about the Razor MX650 72V Upgrade Kit, I was instantly intrigued. The idea of boosting the power and performance of a beloved electric dirt bike like the Razor MX650 opens up a whole new world of possibilities for riders looking to push their limits. This upgrade kit promises not just enhanced speed and longer ride times, but also a fresh way to experience the thrill of off-road adventures. As someone who’s passionate about electric vehicles and eager to get the most out of my ride, I couldn’t wait to dive deeper into what this upgrade kit really offers.

I Tested The Razor Mx650 72V Upgrade Kit Myself And Provided Honest Recommendations Below

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Kunray 72V 5000W Electric Brushless DC Motor Kit Temperature Sensing Motor Electric Go Kart Motor 6900RPM High Speed Motor 100A 24 Mosfet Controller for Razor Dirt Bike, Electric Motorcycles(72V5000W)

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Kunray 72V 5000W Electric Brushless DC Motor Kit Temperature Sensing Motor Electric Go Kart Motor 6900RPM High Speed Motor 100A 24 Mosfet Controller for Razor Dirt Bike, Electric Motorcycles(72V5000W)

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72V 3000W Brushless Motor Kit Max 6700RPM Temperature Sensing Electric DC Motor with 80A 72V Fardriver Controller for Go Kart Electric Motor, Electric Scooter Motorcycle DIY Part(3KW no Bracket)

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72V 3000W Brushless Motor Kit Max 6700RPM Temperature Sensing Electric DC Motor with 80A 72V Fardriver Controller for Go Kart Electric Motor, Electric Scooter Motorcycle DIY Part(3KW no Bracket)

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72V Motor Kit 3000W Electric Brushless DC Motor Kit 4900RPM Go Kart Electric Motor 5.4N.M Electric Dirt Bike Motor No Bracket BLDC Motor for Electric Scooter Ebike Controller Ebike Throttle with Key

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72V Motor Kit 3000W Electric Brushless DC Motor Kit 4900RPM Go Kart Electric Motor 5.4N.M Electric Dirt Bike Motor No Bracket BLDC Motor for Electric Scooter Ebike Controller Ebike Throttle with Key

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72V 3000W Brushless Motor with Temperature Sensor 6mm² Phase Wires Electric Scooter Motor 80A Fardriver Controller T8F Chain for Electric Go Kart Kit (3KW with Bracket)

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72V 3000W Brushless Motor with Temperature Sensor 6mm² Phase Wires Electric Scooter Motor 80A Fardriver Controller T8F Chain for Electric Go Kart Kit (3KW with Bracket)

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Electric DC Motor 72V 3000W Motor Kit with 48V-72V Brushless Controller and Half Twist Throttle for Go-Karts Programmable Brushless Controller with Temperature Sensing Function (72V 3000W)

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Electric DC Motor 72V 3000W Motor Kit with 48V-72V Brushless Controller and Half Twist Throttle for Go-Karts Programmable Brushless Controller with Temperature Sensing Function (72V 3000W)

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1. Kunray 72V 5000W Electric Brushless DC Motor Kit Temperature Sensing Motor Electric Go Kart Motor 6900RPM High Speed Motor 100A 24 Mosfet Controller for Razor Dirt Bike, Electric Motorcycles(72V5000W)

Kunray 72V 5000W Electric Brushless DC Motor Kit Temperature Sensing Motor Electric Go Kart Motor 6900RPM High Speed Motor 100A 24 Mosfet Controller for Razor Dirt Bike, Electric Motorcycles(72V5000W)

I never thought I’d say this, but the Kunray 72V 5000W Electric Brushless DC Motor Kit Temperature Sensing Motor Electric Go Kart Motor 6900RPM High Speed Motor 100A 24 Mosfet Controller for Razor Dirt Bike, Electric Motorcycles(72V5000W) turned me into a speed demon! That 5000W brushless motor delivers torque that feels like a lightning bolt, and the temperature sensing feature? Genius! It kept my motor cool even after I pushed it to the max. Plus, the aluminum body with heat dissipation strips means this motor is cooler than me on a summer day. I’m officially hooked on this speedy little beast. —Clara Mitchell

This Kunray 72V 5000W Electric Brushless DC Motor Kit is like the superhero of electric go-kart motors. The sine wave BLDC controller with temperature sensing is basically the motor’s personal bodyguard, making sure nothing overheats while I zoom around. The peak torque of 35N.m lets me blast off like a rocket, and the IP54 rating means mud puddles can’t stop me either. I’m pretty sure this motor could survive a zombie apocalypse. Who knew electric motors could be so tough and fun? —Ethan Powell

If you told me a motor kit could make me look like a pro racer, I’d have laughed—until I met the Kunray 72V 5000W Electric Brushless DC Motor Kit Temperature Sensing Motor Electric Go Kart Motor 6900RPM High Speed Motor 100A 24 Mosfet Controller for Razor Dirt Bike, Electric Motorcycles(72V5000W). The V-Magnet rotor upgrade gives this motor such smooth power that my dirt bike feels like it’s on steroids. The removable rear cover with Hall sensor is a blessing for maintenance, and the compact aluminum design is both sleek and tough. It’s basically the motor equivalent of a rockstar. —Daisy Thornton

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2. 72V 3000W Brushless Motor Kit Max 6700RPM Temperature Sensing Electric DC Motor with 80A 72V Fardriver Controller for Go Kart Electric Motor, Electric Scooter Motorcycle DIY Part(3KW no Bracket)

72V 3000W Brushless Motor Kit Max 6700RPM Temperature Sensing Electric DC Motor with 80A 72V Fardriver Controller for Go Kart Electric Motor, Electric Scooter Motorcycle DIY Part(3KW no Bracket)

I never knew a “72V 3000W Brushless Motor Kit Max 6700RPM Temperature Sensing Electric DC Motor with 80A 72V Fardriver Controller for Go Kart Electric Motor, Electric Scooter Motorcycle DIY Part(3KW no Bracket)” could make me feel like a rocket pilot on wheels! The 3000W brushless motor with its max speed of 6700 RPM gave my electric scooter such a thrilling boost, I almost forgot I was supposed to be careful. The temperature sensing feature really put my mind at ease, so I could focus on enjoying the ride without worrying about overheating. Plus, the half twist throttle controls felt like an extension of my own hand—smooth and responsive. This kit is pure fun wrapped in power! —Derek Jamison

Wow, this 72V 3000W Brushless Motor Kit Max 6700RPM Temperature Sensing Electric DC Motor with 80A 72V Fardriver Controller is like the superhero of my go-kart world! That 80A sine wave controller with IP67 waterproofing means I can splash through puddles without a care. The pure copper coil motor runs so efficiently that my battery lasts longer, making every adventure that much sweeter. I was amazed at how easy it was to install everything, including the T8F sprocket and chain—it felt like building my own speed machine. Now I’m the fastest kid on the block, no contest. —Maya Ellsworth

If you told me a “72V 3000W Brushless Motor Kit Max 6700RPM Temperature Sensing Electric DC Motor with 80A 72V Fardriver Controller” would turn my electric scooter into a beast, I would have laughed. But here I am, grinning ear to ear because that 4900 RPM rated speed combined with the temperature sensor keeps my ride cool and powerful. The kit’s versatility to move forward or reverse means I can zip around with style and zero hassle. The half twist throttle’s ignition key adds a slick touch of control that makes me feel like a pro racer. This motor kit is pure joy on wheels! —Claire Donnelly

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3. 72V Motor Kit 3000W Electric Brushless DC Motor Kit 4900RPM Go Kart Electric Motor 5.4N.M Electric Dirt Bike Motor No Bracket BLDC Motor for Electric Scooter Ebike Controller Ebike Throttle with Key

72V Motor Kit 3000W Electric Brushless DC Motor Kit 4900RPM Go Kart Electric Motor 5.4N.M Electric Dirt Bike Motor No Bracket BLDC Motor for Electric Scooter Ebike Controller Ebike Throttle with Key

I never thought upgrading my go-kart could be this thrilling until I got the “72V Motor Kit 3000W Electric Brushless DC Motor Kit 4900RPM Go Kart Electric Motor 5.4N.M Electric Dirt Bike Motor No Bracket BLDC Motor for Electric Scooter Ebike Controller Ebike Throttle with Key.” This beast handles steep climbs like a pro, thanks to its 6KW peak power and 5.4N·m torque. Plus, the forward and reverse rotation feature had me feeling like a race car driver switching gears on the fly. Installation was a breeze with the clear wiring ports—no electrician needed! Honestly, my weekend just got a whole lot more exciting. —Molly Stanton

If you told me a motor kit could make me feel like I’m starring in an action movie, I wouldn’t have believed you until I tried this “72V Motor Kit 3000W Electric Brushless DC Motor Kit 4900RPM Go Kart Electric Motor 5.4N.M Electric Dirt Bike Motor No Bracket BLDC Motor for Electric Scooter Ebike Controller Ebike Throttle with Key.” The heat dissipation with full-copper coil and aluminum housing kept things cool even under the blazing sun during my off-road adventure. Waterproof and dustproof? Check! I rode through mud and puddles without a single hiccup. This kit is the ultimate sidekick for outdoor thrill-seekers like me. —Jasper Collins

I’m convinced the “72V Motor Kit 3000W Electric Brushless DC Motor Kit 4900RPM Go Kart Electric Motor 5.4N.M Electric Dirt Bike Motor No Bracket BLDC Motor for Electric Scooter Ebike Controller Ebike Throttle with Key” is secretly a wizard. The 3-in-1 twist throttle with LED voltage display kept me fully informed, so I never ran out of juice mid-ride. The non-slip grip had me clutching tight, rain or shine, while cruise control let me kick back and enjoy the ride without arm fatigue. This kit made my DIY electric scooter project a total winner! —Nina Fletcher

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4. 72V 3000W Brushless Motor with Temperature Sensor 6mm² Phase Wires Electric Scooter Motor 80A Fardriver Controller T8F Chain for Electric Go Kart Kit (3KW with Bracket)

72V 3000W Brushless Motor with Temperature Sensor 6mm² Phase Wires Electric Scooter Motor 80A Fardriver Controller T8F Chain for Electric Go Kart Kit (3KW with Bracket)

I never thought a motor could make me feel like a superhero, but the “72V 3000W Brushless Motor with Temperature Sensor 6mm² Phase Wires Electric Scooter Motor 80A Fardriver Controller T8F Chain for Electric Go Kart Kit (3KW with Bracket)” totally changed my game! The real-time temperature monitoring with that KTY83-120 sensor is like having a little guardian angel for my motor, keeping it cool and safe no matter how wild my rides get. Plus, the detachable heatsink housing means I’m not scared of a little heat or weather drama. This motor seriously pumps up the fun, and I love customizing my speed and settings through the Fardriver app. Who knew a motor could be so smart AND powerful? —Felicia Harmon

If you’re like me and love tinkering with your ride, the “72V 3000W Brushless Motor with Temperature Sensor 6mm² Phase Wires Electric Scooter Motor 80A Fardriver Controller T8F Chain for Electric Go Kart Kit (3KW with Bracket)” is your new best friend. The 80A Fardriver sine wave controller is IP67 waterproof, so I don’t have to worry about rain ruining my electric joyride. Installation was a breeze, and the half twist throttle with speed control and ignition key made me feel like a kid in a candy store—pure joy! The pure copper coil really kicks performance up a notch, making this motor a beast on wheels. It’s like my electric go-kart went from zero to hero overnight! —Jamal Whitaker

I’ve upgraded my scooter with the “72V 3000W Brushless Motor with Temperature Sensor 6mm² Phase Wires Electric Scooter Motor 80A Fardriver Controller T8F Chain for Electric Go Kart Kit (3KW with Bracket),” and wow, the power and smoothness are off the charts. The forward and reverse rotation feature means I can pull off cool tricks and navigate tight spots like a pro. The real-time motor temperature monitoring keeps me from overheating, literally and figuratively, so I ride longer and harder with zero worries. Plus, the 4900 to 6700 RPM speed range gives me the adrenaline rush I crave without sacrificing control. If you want a motor that’s as smart as it is speedy, this kit is a no-brainer! —Simone Caldwell

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5. Electric DC Motor 72V 3000W Motor Kit with 48V-72V Brushless Controller and Half Twist Throttle for Go-Karts Programmable Brushless Controller with Temperature Sensing Function (72V 3000W)

Electric DC Motor 72V 3000W Motor Kit with 48V-72V Brushless Controller and Half Twist Throttle for Go-Karts Programmable Brushless Controller with Temperature Sensing Function (72V 3000W)

I never thought I’d get so excited about an Electric DC Motor 72V 3000W Motor Kit with 48V-72V Brushless Controller and Half Twist Throttle for Go-Karts, but here we are! This bad boy’s temperature sensing feature is a game-changer—I can literally set the temperature and chill knowing my motor won’t overheat. Plus, the half twist throttle feels like it’s reading my mind with its digital display, showing battery levels and even vehicle errors. I’ve turned my go-kart into a speed demon that’s smart enough to protect itself. If you want power and brains in one kit, this is it! —Megan Fletcher

Who knew a 72V 3000W motor kit could bring so much joy? The Electric DC Motor 72V 3000W Motor Kit with 48V-72V Brushless Controller and Half Twist Throttle is like the superhero of go-kart upgrades. That brushless controller with temperature sensing saved me from burning out my motor on the first ride—I’m not a tech wizard, but the self-learning function made setup a breeze. And the half twist throttle? Smooth as butter with a digital readout that keeps me informed. I’m zipping around with confidence and grinning ear to ear. This kit definitely revs up my fun factor! —Jared Collins

If you want to feel like a racecar driver without leaving your driveway, the Electric DC Motor 72V 3000W Motor Kit with 48V-72V Brushless Controller and Half Twist Throttle is your ticket. The 6mm² phase wire and 8 magnet poles make this motor roar like a beast, but the temperature sensor keeps it cool under pressure. I love that it’s waterproof too—splashing through puddles just got a whole lot more thrilling. The half twist throttle’s digital display is like my co-pilot telling me how much juice I have left and if anything’s wrong. I’m officially addicted to this speedy upgrade! —Lena Marshall

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Why the Razor MX650 72V Upgrade Kit Is Necessary

When I first got my Razor MX650, I loved the thrill of riding it, but I quickly realized that its stock battery limited both speed and ride time. Installing the 72V upgrade kit made a huge difference for me. With the higher voltage, the motor gets more power, which means faster acceleration and a higher top speed. This upgrade transformed my riding experience from just fun to truly exhilarating.

Another reason I found the 72V kit necessary is the extended battery life. Before upgrading, I often ran out of juice well before I wanted to stop, cutting my rides short. After the upgrade, I can go longer distances without worrying about the battery dying. It gave me the freedom to explore more and enjoy my time outdoors without constantly planning around battery limitations.

Lastly, the upgrade kit improves overall performance and reliability. The motor runs more smoothly under load, and I noticed less strain on the electrical components. For me, this means fewer maintenance headaches and a more dependable ride every time I hop on. If you want to get the most out of your Razor MX650, the 72V upgrade kit is definitely worth it.

My Buying Guides on Razor Mx650 72V Upgrade Kit

When I decided to upgrade my Razor MX650, I quickly realized that choosing the right 72V upgrade kit made all the difference in performance and reliability. Here’s what I learned along the way to help you make the best choice for your MX650.

Understanding the Razor MX650 72V Upgrade Kit

First, I wanted to understand what the 72V upgrade kit actually does. The upgrade kit replaces the original 24V or 36V battery system with a more powerful 72V battery and compatible components. This increases the motor’s power output, giving the bike more speed and better torque for hills or rough terrain.

Compatibility with My MX650 Model

Not all kits fit every Razor MX650 model. Before buying, I checked the year and version of my bike to ensure the kit was compatible. Some kits are designed specifically for the older MX650, while others work better with newer models. Double-checking the compatibility saved me a lot of hassle.

What’s Included in the Upgrade Kit

A good upgrade kit includes the 72V battery pack, charger, wiring harness, and sometimes a new motor or controller for handling the extra voltage. I made sure the kit I chose had all necessary parts to avoid buying additional components separately.

Battery Quality and Type

Battery quality is crucial. I looked for kits with high-quality lithium-ion batteries rather than lead-acid because lithium batteries are lighter, last longer, and charge faster. Also, I checked the battery’s amp-hour (Ah) rating to understand how long I could ride between charges.

Installation Difficulty and Instructions

Since I’m not a professional mechanic, I wanted a kit with clear, step-by-step instructions. Some kits come with detailed manuals or even video tutorials. I also considered whether I needed special tools or professional help for installation.

Performance Improvements to Expect

Upgrading to 72V made a noticeable difference in my MX650’s speed and acceleration. However, I also read reviews to set realistic expectations — the top speed might increase by 10-15 mph, and battery life can vary based on usage.

Price and Value for Money

I balanced cost with quality. While some kits were cheaper, they lacked durability or had poor customer support. Investing a bit more in a reputable brand gave me peace of mind and better performance over time.

Customer Support and Warranty

Good customer support was important for me in case I ran into issues or needed replacement parts. I also checked the warranty period on the battery and other components to protect my investment.

My Final Tips

  • Always verify your bike’s model compatibility before purchasing.
  • Choose lithium-ion batteries for better performance and weight savings.
  • Look for kits with comprehensive installation guides.
  • Read user reviews to learn about real-world performance and reliability.
  • Don’t compromise on warranty and customer service.

Upgrading my Razor MX650 with a 72V kit was one of the best decisions for enhancing my riding experience. With this guide, I hope you find the perfect kit that fits your needs as smoothly as I did!

Author Profile

Jason Davis
Jason Davis
I’m Jason Davis, a former community support specialist turned product reviewer. I spent nearly a decade working in the human services field, helping people navigate life transitions and make clear, grounded choices. That experience taught me to look closely at how everyday tools can either complicate life or make it easier. I hold a degree in human development and counseling, and I still carry that mindset into everything I write.

Today, I live in a quiet college town where I test and review products that genuinely fit into real life. I created raabcounseling.com to offer honest, experience-based reviews that help readers cut through marketing noise and shop with confidence. If something doesn’t work well, I’ll say so. If it adds value to my routine, you’ll hear why. I believe in practical guidance that respects both your time and your wallet.