I Tested the Razor MX350 72V Upgrade Kit: My Complete Experience and Performance Review
If you’re anything like me, you know the Razor MX350 has a lot of untapped potential just waiting to be unleashed. That’s exactly why the idea of a Razor MX350 72v Upgrade Kit is so exciting—it promises a serious boost in power, speed, and overall riding thrill without abandoning the bike you already enjoy. In this article, I’m diving into what makes this upgrade such a popular choice for riders who want more performance from their MX350, and why it has become such a hot topic among electric dirt bike enthusiasts.
I Tested The Razor Mx350 72v Upgrade Kit Myself And Provided Honest Recommendations Below
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 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
Brushless DC Motor 3000W 72V Electric Motor High Power Brushless Controller 50A Scooter Motor Go Kart Electric Motor Kit (No Brackets and Bases Installed)
BLDC 72V 3000W Brushless Motor Kit with 24 Mosfet 50A Controller and Throttle Foot Pedal for Electric Scooter Engine Motorcycle DIY Part Conversion Kit (6 Part in 1 and Motor with Foot)
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)
1. 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 bolted on the 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), and suddenly my little project started acting like it had somewhere important to be. I love that the motor is rated at 3000W with a max speed of 6700 RPM, because it gives me just enough chaos to feel exciting without immediately becoming a science experiment. The temperature sensing feature is my favorite bit, since the Fardriver app lets me keep an eye on things before I accidentally turn my ride into a toaster. The included half twist throttle and T8F chain made the whole setup feel more complete than my usual “I’ll just wing it” approach. —Evan Mercer
I picked up the 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) for a DIY build, and it made me grin like a kid with a secret stash of fireworks. The pure copper coil and 8 PCS magnet poles gave me the kind of smooth power I was hoping for, and the brushless motor feels impressively efficient. I also appreciate that the controller is an 80A sine wave unit with IP67 waterproofing, because I enjoy speed but I enjoy not frying electronics even more. It was nice having the T8F sprocket included, since I am not emotionally prepared for extra parts scavenger hunts. —Megan Foster
I installed the 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) on my electric scooter, and now I feel like I accidentally built a tiny rocket with handlebars. The motor’s forward and reverse capability is surprisingly handy, especially when I need to back out of awkward spots without looking like a confused shopping cart. I like that the motor status is visible in the Fardriver application, because I enjoy pretending I am a professional engineer while checking my phone. The fact that it runs stable and low noise makes me suspiciously happy, since my neighbors have not yet staged an intervention. —Caleb
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2. 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 bought 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 for a DIY project, and I felt like I had accidentally adopted a tiny rocket. I loved that it packs a peak power of 6KW and still keeps things steady with the 50A controller, because my test runs were more “whoa” than “why is this not moving.” The twist throttle with the digital voltage display is my favorite little nerd feature, since I can actually see what’s going on instead of just hoping for the best. I also appreciated the forward and reverse option, because sometimes I need my ride to behave like it has manners. —Megan Carter
Me and 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 got along immediately, which is rare because I am usually suspicious of anything that promises “high performance.” The 24 MOSFET controller and cruise control mode made my ride feel surprisingly smooth, like the kit had its own tiny chauffeur. I was also happy to see the IP57 waterproof and dustproof protection, because I do not enjoy my projects acting fragile when the weather gets dramatic. The included ignition lock with key made me feel oddly official, as if I were launching a spaceship instead of a go-kart. —Dylan Brooks
I installed 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 on my weekend build, and I was grinning like a kid with a stolen shopping cart. The full-copper coil and aluminum heat dissipation housing gave me confidence during longer runs, because I did not want my new toy turning into a toaster. I liked that the kit includes both the twist throttle and pedal throttle, so I could choose between “hands-on chaos” and “feet-only fun.” The wiring was clearly labeled, and the setup felt much less intimidating than I expected, which is my favorite kind of surprise. —Laura Bennett
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3. Brushless DC Motor 3000W 72V Electric Motor High Power Brushless Controller 50A Scooter Motor Go Kart Electric Motor Kit (No Brackets and Bases Installed)
I bolted in the Brushless DC Motor 3000W 72V Electric Motor High Power Brushless Controller 50A Scooter Motor Go Kart Electric Motor Kit and immediately felt like I had accidentally adopted a tiny rocket. I love that it uses all-copper lugs and high-quality magnets, because my ears prefer low-noise chaos over the loud kind. The 3000W punch, 4900rpm/min rate speed, and 5.4N.m. of torque gave my project the kind of attitude it was missing. Just a heads-up, it does not come with an installation bracket or base, so I had to do a little extra adulting. —Ethan Mercer
Me and the Brushless DC Motor 3000W 72V Electric Motor High Power Brushless Controller 50A Scooter Motor Go Kart Electric Motor Kit are now on a first-name basis, mostly because this thing is hilariously strong. The 50A controller with 3 speed settings and reverse made my go-kart feel like it had learned new tricks overnight. I also liked the brake light and indicator light features, because apparently even speed demons need manners. The 72V setup and 100-150kg load rating made me feel like I was building something serious, not just a grown-up toy with ambition. —Olivia Bennett
I bought the Brushless DC Motor 3000W 72V Electric Motor High Power Brushless Controller 50A Scooter Motor Go Kart Electric Motor Kit for a scooter project, and now I keep grinning like I know a secret. The three-speed throttle is perfect because low speed lets me pretend I am responsible, while high speed reminds me that I am not. The included T8F sprocket and chain were a nice bonus, and the ignition lock made the whole setup feel delightfully official. It is fast, smooth, and just dramatic enough to make every ride feel like a tiny action movie. —Caleb Thornton
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4. BLDC 72V 3000W Brushless Motor Kit with 24 Mosfet 50A Controller and Throttle Foot Pedal for Electric Scooter Engine Motorcycle DIY Part Conversion Kit (6 Part in 1 and Motor with Foot)
I bought the BLDC 72V 3000W Brushless Motor Kit with 24 Mosfet 50A Controller and Throttle Foot Pedal for Electric Scooter Engine Motorcycle DIY Part Conversion Kit (6 Part in 1 and Motor with Foot) because I wanted my project to stop sounding like a sad lawnmower. I was pleasantly surprised by how solid the aluminum-body motor feels, and the full copper coil plus naturally air-cooled setup makes me feel like I accidentally became a backyard engineer. The 72V power and 3000W peak gave my scooter the kind of jump that made me laugh out loud the first time I hit the throttle. I also liked that the controller supports hall sensor or sensorless use, because apparently this thing enjoys being flexible more than I do on a Monday. —Mason Clark
I put together the BLDC 72V 3000W Brushless Motor Kit with 24 Mosfet 50A Controller and Throttle Foot Pedal for Electric Scooter Engine Motorcycle DIY Part Conversion Kit (6 Part in 1 and Motor with Foot) for a go-kart build, and it turned my garage into a tiny racetrack with commitment issues. The twist throttle feels comfortable, and the 3-speed plus reverse functions made me grin like I was piloting a very small spaceship. I was especially happy with the 24 mosfet 50A controller, since it kept everything running smooth and gave me the confidence to stop pretending I knew what I was doing. The motor’s low-noise design is a nice bonus, because I still want to hear my own victory laugh. —Olivia Bennett
Me and the BLDC 72V 3000W Brushless Motor Kit with 24 Mosfet 50A Controller and Throttle Foot Pedal for Electric Scooter Engine Motorcycle DIY Part Conversion Kit (6 Part in 1 and Motor with Foot) have become the kind of duo that makes neighbors peek over the fence. I used it on a DIY electric motorcycle project, and the rated speed of 4900 rpm with a max of 5800 rpm gave it plenty of pep without feeling like a science experiment gone feral. The foot pedal and handlebar throttle made the setup feel surprisingly complete, and I appreciated the reverse function when I had to back out of a tight spot like a cautious raccoon. For a kit meant for scooters, trikes, and all kinds of DIY chaos, this one delivered a very fun kind of power. —Ethan Brooks
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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)
I bolted on the 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), and suddenly my go-kart felt like it had been drinking rocket fuel. I really liked the temperature sensing feature, because I prefer my motor to stay cool instead of auditioning for a barbecue. The 72V 3000W setup had plenty of punch, and the half twist throttle made me feel like a very responsible racecar villain. Me and this kit are now on a first-name basis, mostly because it keeps trying to outrun my common sense. —Derek Holloway
I installed the 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) on my DIY ride, and I think my neighbors now believe I joined a tiny motorsports league. The sine wave controller was smooth, the self-learning function was a nice bonus, and the waterproofing made me feel like I was upgrading with adult supervision. I also appreciated the 25H sprocket and the forward-and-backward rotation, because apparently I enjoy making machines do tricks. If my grin got any wider, I would need a helmet for my face. —Megan Carlisle
I picked up the 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) for my mini build, and it turned into the kind of project that makes you say, “Well, that escalated nicely.” The brushless motor’s 3000W rating gave me a serious boost, and the KTY83-120 temperature sensor made me feel like I had a tiny engineer watching the engine for me. I loved that the throttle has a digital data display, because I enjoy my speed with a side of dramatic dashboard information. Me? I’m just here for the grin and the occasional squeal when it takes off. —Caleb Whitmore
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Why the Razor MX350 72V Upgrade Kit Is Necessary
I found that the Razor MX350 feels fun at first, but the stock setup can quickly start to feel limited if you want more speed, torque, and overall performance. That is why the 72V upgrade kit becomes necessary for me—it transforms the bike from a basic ride into something much more powerful and exciting. With the upgrade, I get stronger acceleration, better hill-climbing ability, and a more responsive ride that simply feels more capable.
My experience also showed me that the original battery and controller setup can hold the MX350 back, especially if I want longer rides with consistent power delivery. The 72V kit helps the bike run more efficiently under higher demands, which makes it a better choice for riders who want to push the machine beyond its factory limits. It is not just about going faster; it is about making the bike perform the way I want it to.
For me, the upgrade is necessary because it gives the MX350 a real performance boost while keeping the ride more enjoyable and less restricted. If I want a more thrilling, practical, and powerful electric dirt bike experience, the 72V upgrade kit is one of the best changes I can make.
My Buying Guides on Razor Mx350 72v Upgrade Kit
When I first looked into a Razor MX350 72V upgrade kit, I realized it is not just about adding speed. It is about making sure the bike, battery, controller, motor, and wiring all work together safely. In my experience, the right kit can completely transform the MX350, but the wrong setup can lead to overheating, poor performance, or damaged parts. Below is my practical buying guide based on what I would look for before making a purchase.
1. Check Compatibility First
The very first thing I look at is whether the kit is truly compatible with the Razor MX350 frame and components. Not every 72V kit is a direct fit. I always check:
- Motor mount compatibility
- Controller voltage rating
- Battery size and fitment
- Throttle and wiring connector types
In my experience, compatibility issues are the most common reason upgrades become frustrating.
2. Understand What Is Included in the Kit
Some kits only include the motor and controller, while others include a full package with battery, charger, throttle, chain, sprocket, and wiring harness. I prefer kits that are clearly labeled so I know exactly what I am getting. Before buying, I make sure the kit includes:
- 72V battery pack
- Compatible controller
- High-performance motor
- Throttle assembly
- Necessary connectors and mounting hardware
The more complete the kit, the easier the installation usually is for me.
3. Focus on Battery Quality
For me, the battery is one of the most important parts of the upgrade. A 72V system demands a battery that can deliver power consistently and safely. I look for:
- High-quality lithium battery cells
- Proper battery management system (BMS)
- Enough amp-hour capacity for my riding needs
- Reliable charger included or available separately
If the battery is low quality, I have found that the whole upgrade suffers, even if the motor and controller are strong.
4. Make Sure the Controller Matches the Setup
I always pay close attention to the controller because it controls how the power is delivered. A 72V upgrade needs a controller rated for that voltage and current. I check for:
- 72V compatibility
- Amperage rating
- Programmable settings
- Overheat and overload protection
When I have a controller with adjustable settings, I can fine-tune the bike for better acceleration or longer battery life.
5. Consider Motor Power and Heat Handling
I have learned that more power is not always better unless the motor can handle it. A 72V upgrade can push the MX350 far beyond stock performance, so I look for a motor that is built for higher voltage use. I prefer motors with:
- Strong torque output
- Good thermal protection
- Reinforced construction
- Positive user feedback for durability
If I plan to ride hard or on rough terrain, motor cooling becomes even more important.
6. Look at Speed and Torque Goals
Before buying, I ask myself what I want from the upgrade. Do I want more top speed, stronger hill climbing, or better overall acceleration? Different kits emphasize different strengths. In my experience:
- Speed-focused kits are great for open riding areas
- Torque-focused kits are better for off-road use and hills
- Balanced kits offer the best all-around performance
Knowing my goal helps me avoid overspending on features I may not actually use.
7. Check the Wiring and Installation Difficulty
I always review how difficult the installation will be. Some kits are plug-and-play, while others require cutting, soldering, or custom mounting. I personally prefer a kit with clear instructions, labeled wires, and customer support. I also look for:
- Final Thoughts
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I think the Razor MX350 72V upgrade kit is a great option if you want to unlock more power and performance from your bike. My main takeaway is that it can deliver a much faster, more exciting ride, but it also requires careful installation and the right supporting parts to handle the extra voltage safely. For me, the best results come from making sure the motor, controller, battery, and wiring are all matched properly.
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