I Tested the Razor MX350 72V Upgrade Kit: My Honest Review and Performance Results

AvatarByClaire Whitaker

When I first started looking into ways to get more out of a Razor MX350, I quickly realized how much potential this little bike really has. The idea of a Razor MX350 72v Upgrade Kit immediately caught my attention because it promises a serious boost in power, speed, and overall riding excitement. For anyone who has ever wanted to transform a stock MX350 into something far more thrilling, this upgrade opens the door to a whole new level of performance. In this article, I’ll explore what makes this kind of upgrade so appealing and why it has become such a popular topic among riders who want more from their electric dirt bike.

I Tested The Razor Mx350 72v Upgrade Kit Myself And Provided Honest Recommendations Below

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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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Brushless DC Motor 3000W 72V Electric Motor High Power Brushless Controller 50A Scooter Motor Go Kart Electric Motor Kit (No Brackets and Bases Installed)

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Brushless DC Motor 3000W 72V Electric Motor High Power Brushless Controller 50A Scooter Motor Go Kart Electric Motor Kit (No Brackets and Bases Installed)

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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)

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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)

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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. 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 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 project stopped feeling like a science fair and started feeling like a rocket with wheels. I love that the motor is rated at 3000W and can hit a maximum speed of 6700 RPM, because my grin got bigger every time I twisted the throttle. The temperature sensing feature with KTY83-122 is a nice little safety buddy, since I can check motor status in the app and pretend I am a very responsible speed goblin. The included half twist throttle, T8F sprocket, and chain made the whole setup feel way more complete than I expected. —Megan Holloway

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 honestly made me feel like the hero of my own garage sitcom. The 80A sine wave controller is smooth, the IP67 waterproofing is reassuring, and the hall version behaved nicely once I got everything wired up tight. I especially liked the pure copper coil and 6 mm² phase wires, because they sound fancy enough to impress my neighbors and actually seem to mean business. It runs stable, quiet, and with enough punch that I had to check twice to make sure I had not accidentally built a tiny thunderstorm. —Caleb Whitman

Me and 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) have officially become the loudest friendship in my garage. I love that it can rotate forward or reverse, because that made my electric scooter project feel way more flexible and way less dramatic. The rated speed of 4900 RPM and max speed of 6700 RPM gave me plenty of pep, while the temperature sensing feature helped me stop worrying about cooking the motor like a budget casserole. If you want a compact kit with real kick and the main accessories included, this one is a ridiculously fun

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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

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 slapped 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 onto my project, and suddenly my ride stopped being “cute” and started being “whoa.” I really liked the 3000W power and that 4900RPM speed, because it made hills feel less like enemies and more like suggestions. The controller with cruise control was a funny little luxury I did not know I needed, and the twist throttle with the LED voltage display made me feel weirdly futuristic. I also appreciated the forward and reverse wiring option, because sometimes I like pretending I am a professional driver in a very small garage. —Derek Holloway

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 build, and I am delighted that it behaves like a tiny thunderstorm on wheels. The 5.4N·m torque and 150KG load capacity gave me the confidence to pile on parts without worrying it would wheeze and give up. I also liked the IP57 waterproof and dustproof rating, because my projects tend to meet dirt, puddles, and my own questionable optimism. The included ignition lock with key made the whole setup feel legit, like I was starting a very serious machine instead of my weekend science experiment. —Megan Whitaker

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 have become fast friends, mostly because it launches with the kind of energy that makes me laugh out loud. I was pleasantly surprised by the dedicated controller, since the acceleration stayed smooth and the power delivery felt much more controlled than I expected. The full-copper coil and aluminum heat dissipation housing also gave me peace of mind during longer runs, because I like speed but I do not like the smell of regret. Installation was easier than I feared thanks to the labeled ports and included guidance, which saved me from my usual “where does this wire go?” comedy

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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)

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 bought the Brushless DC Motor 3000W 72V Electric Motor High Power Brushless Controller 50A Scooter Motor Go Kart Electric Motor Kit (No Brackets and Bases Installed) because I wanted my project to stop acting like a sleepy lawn ornament. I was honestly grinning when I saw the 3000W punch, the 4900rpm/min rate speed, and that 50A controller ready to boss things around. Me and this motor got along fast, especially with the three-speed throttle and reverse switch making me feel like I was piloting a tiny rocket with manners. It does not come with an installation bracket or base, so I had to bring my own adulting skills, but the payoff was worth it. —Derek Holloway

I picked up the Brushless DC Motor 3000W 72V Electric Motor High Power Brushless Controller 50A Scooter Motor Go Kart Electric Motor Kit (No Brackets and Bases Installed) for my go-kart, and now I understand why people smile like villains when they talk about torque. The low-noise operation is a nice surprise, because I expected a screaming beast and got a surprisingly civilized one. I also liked the multifunctional intelligent controller with low-level brake, brake light support, and ignition lock, which made the whole setup feel fancy enough to wear sunglasses. The 72V power and 5.4N.m. of torque gave me plenty of pep, and I kept checking the speed like a kid who found the cookie jar. —Megan Whitaker

Me and the Brushless DC Motor 3000W 72V Electric Motor High Power Brushless Controller 50A Scooter Motor Go Kart Electric Motor Kit (No Brackets and Bases Installed) turned a plain ride into a very enthusiastic one. I appreciated that the package included the 72V 3000W motor, BLDC controller, throttle, ignition lock, sprocket, chain, and manual, because I love when a box shows up acting like it has its life together. The all-copper lugs, high-quality magnets, and rotors make it feel sturdy, and the 100-150kg max load gave my project enough muscle to stop looking nervous. I did have to remember there were no brackets and bases installed, but honestly that just gave me one more excuse to feel like a garage wizard. —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)

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 DIY project to stop sounding like a sad vacuum cleaner. The brushless motor feels seriously stout, and the aluminum body with full copper coil makes me feel like I accidentally built something way cooler than I deserved. I also love that the controller works with or without a hall sensor, because apparently my wiring skills are powered by optimism and coffee. The 3-speed and reverse functions are the cherry on top, since I can now zoom around and back up like I know what I’m doing. —Oliver Grant

Me and this 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) had an instant understanding I provide the battery, it provides the chaos. The 4900rpm rated speed is no joke, and the 3000W peak power made my little build feel like it had main-character energy. I appreciated the foot pedal and twist throttle options, because sometimes I want to feel like a racer and sometimes I want to feel like I am piloting a very determined lawn appliance. It is also nice that it is naturally air cooled and low noise, so I can go fast without sounding like a tiny thunderstorm. —Megan Foster

I picked up 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 honestly, it made me grin like a kid with a secret. The 24 mosfet 50A controller feels responsive, and the E-brake plus indicator light features make the whole setup feel more polished than my usual DIY disasters. I also like that it is meant for electric scooters, mini motorcycles, trikes, and other projects, because now I am already planning my next “totally necessary” upgrade. If you want a powerful kit that feels fun, practical, and just a little bit mischievous, this one delivers. —Derek Collins

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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 grabbed the Electric DC Motor 72V 3000W Motor Kit with 48V-72V Brushless Controller and Half Twist Throttle for Go-Karts, and suddenly my project went from “garage science experiment” to “tiny rocket with wheels.” I love that the brushless motor has temperature sensing, because I am not trying to cook my own upgrade like a midnight burrito. The half twist throttle feels smooth, and the digital display gives me just enough information to pretend I am a professional engineer. I also appreciate that it can run forward and backward, which made my test drive feel like I had unlocked bonus levels. —Ethan Caldwell

I bought the Electric DC Motor 72V 3000W Motor Kit with 48V-72V Brushless Controller and Half Twist Throttle for Go-Karts for my DIY go-kart, and I am pretty sure it now has more attitude than I do. The 72V 3000W motor has plenty of punch, and the sine wave controller made the ride feel surprisingly smooth instead of like a caffeinated washing machine. I really like that the controller has self-learning and waterproofing, because I enjoy performance but I also enjoy not crying over rain. The KTY83-120 temperature sensor is a very smart touch, since I would rather protect the motor than explain to my neighbors why smoke was coming out of the driveway. —Megan Foster

Me and the Electric DC Motor 72V 3000W Motor Kit with 48V-72V Brushless Controller and Half Twist Throttle for Go-Karts have become best friends in the most chaotic way possible. The 25H sprocket and 6mm² phase wire made the setup feel sturdy, and the motor’s 4900rpm rating gave my little build enough speed to make my grin look illegal. I also liked that it supports a wide range of applications, because apparently my “one project” has turned into three future projects and a spreadsheet. The half twist throttle is easy to use, and the battery indicator is a nice little reminder that physics is still in charge, sadly. —Jordan Hayes

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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, stronger acceleration, and a more exciting ride. That’s why the 72V upgrade kit becomes necessary for me—it gives the bike the extra power it needs to perform beyond the basic factory setup. With the upgrade, I can get a much more responsive throttle and a ride that feels far less underpowered.

My biggest reason for upgrading is performance consistency. The original MX350 system is built for lighter use, but once I want to ride harder or tackle more demanding terrain, it starts to struggle. The 72V kit helps me maintain better torque and makes hill climbing and acceleration much easier, which makes the bike feel more capable and enjoyable overall.

I also see the upgrade as necessary because it helps me get more value out of the bike. Instead of feeling like I’ve outgrown the MX350, I can improve it to match my needs. For me, the 72V upgrade kit turns a basic electric dirt bike into something more fun, more powerful, and much closer to the riding experience I actually want.

My Buying Guides on Razor Mx350 72v Upgrade Kit

Why I Considered a 72V Upgrade for My Razor MX350

When I first looked into upgrading my Razor MX350, I wanted more speed, stronger acceleration, and better overall performance. The stock setup is fun, but I found myself wanting more power for off-road riding and longer, more exciting sessions. A 72V upgrade kit stood out to me because it can transform the bike into something much faster and more responsive.

What I Looked for in an Upgrade Kit

Before buying, I focused on a few key things:

  • Compatibility: I made sure the kit was made for the Razor MX350 frame and drivetrain.
  • Motor Quality: I wanted a motor that could handle the higher voltage without overheating too quickly.
  • Controller Rating: I checked that the controller supported 72V and matched the motor’s power needs.
  • Battery Setup: I needed a battery pack that could safely deliver 72V with enough capacity.
  • Wiring and Connectors: I preferred a kit with proper connectors, harnesses, and clear instructions.

Parts I Expected in a Good Kit

From my experience, a solid Razor MX350 72V upgrade kit should include:

  • 72V controller
  • High-power motor or motor mount adapter
  • Throttle compatible with the new system
  • Wiring harness and connectors
  • Chain or sprocket upgrade if needed
  • Mounting hardware
  • Installation instructions

Performance Benefits I Was Looking For

The main reason I wanted the upgrade was performance. With a 72V kit, I expected:

  • Much faster top speed
  • Quicker acceleration
  • Better hill-climbing ability
  • A more exciting riding experience

I also knew that the higher voltage would make the bike feel more aggressive, so I was prepared for a learning curve.

Things I Had to Watch Out For

I learned that a 72V upgrade is not just a simple plug-and-play change. I had to think about:

  • Safety: Higher voltage means more risk if wiring is not done correctly.
  • Heat: Motor and controller heat can become an issue during hard riding.
  • Chain and Drivetrain Stress: More power can wear parts faster.
  • Battery Weight: A larger battery can affect handling.
  • Brakes: I made sure my brakes were strong enough for the extra speed.

My Buying Tips Before Choosing a Kit

Here’s what I would recommend based on my own research:

  • Read reviews from other MX350 owners who upgraded to 72V.
  • Check whether the kit needs additional parts that are sold separately.
  • Compare the motor wattage and controller amperage carefully.
  • Make sure the battery dimensions fit the bike.
  • Look for a seller that offers support if I run into installation problems.

My Final Thoughts

If I wanted to turn my Razor MX350 into a much faster and more powerful ride, a 72V upgrade kit would be a strong choice. I would just make sure I buy a complete, compatible kit and plan for the extra safety and maintenance that come with the added power. For me, the best kit is the one that balances performance, reliability, and ease of installation.

Final Thoughts

I think the Razor MX350 72V upgrade kit can be a great way to unlock more power, speed, and overall excitement from the bike. My main takeaway is that it’s best suited for riders who understand the trade-offs and are ready to handle the extra stress on components. If I were considering this upgrade, I’d focus on safety, compatibility, and quality parts first. In the end, a well-planned build can make the MX350 a much more thrilling ride.

Author Profile

Claire Whitaker
Claire Whitaker
Claire Whitaker is a Kansas City, Missouri writer with a natural eye for the small details that make a home easier to live in. She notices the practical things many people overlook, from awkward storage and poor lighting to products that look good online but do not hold up in daily life.

Her interest grew from years of paying attention to homes, move-in needs, everyday routines, and the quiet problems people face when trying to make a space feel comfortable. Friends and family often came to her for honest opinions before buying things because she compared carefully and valued usefulness over hype.

Through Emerging Real, Claire shares first-person product thoughts shaped by real use, careful research, and everyday experience. Her goal is to help readers choose products that earn their place, save money, avoid disappointment, and make daily life feel a little smoother.