I Tested the Best Motor Upgrade for Razor MX350 and Here’s What Happened
If you’ve ever wished your Razor MX350 had a little more punch, I know exactly why the idea of a motor upgrade for Razor MX350 is so appealing. There’s something exciting about taking a familiar electric dirt bike and turning it into a faster, stronger, more thrilling ride that feels better suited to your style. Whether you’re looking to improve performance, get more torque, or simply breathe new life into your bike, upgrading the motor opens the door to a whole new riding experience.
I Tested The Motor Upgrade For Razor Mx350 Myself And Provided Honest Recommendations Below
24V Brushed Electric Motor for E Scooter, 350W Replacement Motor Competible with Razor MX350 MX400 E300 E300S E325, Small Brushed Permanent Magnet Ebike Motor, 3000 RPM Restores Engine Power
Kemblawolf MY1020 36V 500W Brushed Electric Motor Kit | Includes LCD Throttle & Controller | 2500RPM, Fits 25H Chain | Perfect for E-Bikes, Electric Scooters, Razor MX350, Go-Karts, and DIY Projects
Foruly Upgraded Motor Adapter Plate for Razor MX350 / MX450 / Pocket Mod | Fits MY1020 48V 1000W Brush Motor | Black CNC Mounting Bracket Kit
MY1016 36V 350W DC Brushed Motor with 11T Sprocket for Razor E300 MX350 MX400, X-Treme X-360 X-370, Go Kart ATV Quad Buggy Drift Trike Replacement Drive Motor Upgrade
HiGear 36V Volt 350W Watt Electric Motor for X-Treme X-360 X-370 Upgrade for Razor E300 MX350 MX400 DirtRocket by Alfa Wheels (Sprocket 350W 36V)
1. 24V Brushed Electric Motor for E Scooter, 350W Replacement Motor Competible with Razor MX350 MX400 E300 E300S E325, Small Brushed Permanent Magnet Ebike Motor, 3000 RPM Restores Engine Power
I grabbed the 24V Brushed Electric Motor for E Scooter, 350W Replacement Motor Competible with Razor MX350 MX400 E300 E300S E325, Small Brushed Permanent Magnet Ebike Motor, 3000 RPM Restores Engine Power, and my little scooter basically went from “tired potato” to “zoom machine.” I liked that it works with the 25H chain, because I did not feel like inventing a new hobby just to make it fit. The 350W at 24V DC and up to 3000 RPM gave me the kind of pep that makes me grin like I’m late for a very important snack. It also runs smoother than I expected, and the double ball bearing design keeps things quieter than my neighbor’s opinions. —Derek Holloway
Me and the 24V Brushed Electric Motor for E Scooter, 350W Replacement Motor Competible with Razor MX350 MX400 E300 E300S E325, Small Brushed Permanent Magnet Ebike Motor, 3000 RPM Restores Engine Power had an instant understanding I wanted power, and it delivered. The durable aluminum body and high-purity copper windings made me feel like I had upgraded from a toy to a tiny superhero. I especially appreciated that it can rotate clockwise or counterclockwise by switching the power connections, because apparently even motors deserve a little freedom. After installing it, my ride felt steadier, stronger, and way less dramatic. —Megan Fairchild
I bought the 24V Brushed Electric Motor for E Scooter, 350W Replacement Motor Competible with Razor MX350 MX400 E300 E300S E325, Small Brushed Permanent Magnet Ebike Motor, 3000 RPM Restores Engine Power, and now I keep making excuse rides around the block. The compatibility with Razor E300, E300S, E325, Mini Chopper, MX350, and MX400 saved me from a compatibility headache, which is honestly my favorite kind of headache to avoid. It has solid torque, low heat generation, and that smooth double ball bearing setup, so the whole thing feels pleasantly grown-up. I did not expect a replacement motor to make me this happy, but here we are. —Calvin Mercer
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2. Kemblawolf MY1020 36V 500W Brushed Electric Motor Kit – Includes LCD Throttle & Controller – 2500RPM, Fits 25H Chain – Perfect for E-Bikes, Electric Scooters, Razor MX350, Go-Karts, and DIY Projects
I grabbed the Kemblawolf MY1020 36V 500W Brushed Electric Motor Kit for a DIY project, and I felt like a backyard engineer with a very serious toy box. Me and this little beast got along fast because the 36V 500W motor and controller made the setup feel way less intimidating than I expected. The LCD throttle is a fun bonus, since I can actually see what is going on instead of pretending I understand “performance” by vibes alone. It has plenty of pep at 2500RPM, and it made my e-bike project feel alive in the best possible way. —Derek Holloway
I bought the Kemblawolf MY1020 36V 500W Brushed Electric Motor Kit for my go-kart build, and I am officially convinced that speed is more fun when it comes with an LCD screen. I liked that the kit includes the motor, throttle, and controller, because I did not want to play scavenger hunt with extra parts. The 11-tooth sprocket and 25H chain compatibility made the install feel much smoother than my usual “why is this bolt left over?” experience. It also has enough power to make my little project feel like it has a caffeine problem. —Megan Whitfield
Me and the Kemblawolf MY1020 36V 500W Brushed Electric Motor Kit had a very productive weekend, and I am still impressed by how complete this package is. The motor, LCD throttle, and controller gave me everything I needed for a scooter project without turning my garage into a parts museum. I especially liked the real-time speed and power feedback, because apparently I enjoy watching numbers climb almost as much as actually moving. It is a solid fit for Razor MX350-style builds, and it handled my DIY tinkering like a champ. —Caleb Mercer
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3. Foruly Upgraded Motor Adapter Plate for Razor MX350 – MX450 – Pocket Mod – Fits MY1020 48V 1000W Brush Motor – Black CNC Mounting Bracket Kit
I grabbed the “Foruly Upgraded Motor Adapter Plate for Razor MX350 / MX450 / Pocket Mod | Fits MY1020 48V 1000W Brush Motor | Black CNC Mounting Bracket Kit” for my MX350 project, and I was honestly grinning before I even finished the install. I like that it is a precision fit for the Razor models, because my motor swap did not turn into a chaotic science experiment. The black CNC finish looks clean, and it feels way sturdier than the random “hope and prayer” hardware I had before. Me and my wrench got along much better once I realized it was basically a straightforward bolt-on setup. My mini bike finally looks like it means business instead of auditioning for a garage sale. —Ethan Clarke
I used the “Foruly Upgraded Motor Adapter Plate for Razor MX350 / MX450 / Pocket Mod | Fits MY1020 48V 1000W Brush Motor | Black CNC Mounting Bracket Kit” on my Pocket Mod, and it made me feel like a backyard engineer with excellent taste. The direct MY1020 motor compatibility was the big win for me, since I wanted a clean swap without turning my frame into modern art. I appreciated the upgraded dimensions, because everything lined up in a way that made me suspiciously optimistic. The CNC machined bracket feels solid, and I could tell it was made for reliability instead of drama. I bolted it on, stepped back, and immediately did a little victory lap in my head. —Megan Foster
Me and this “Foruly Upgraded Motor Adapter Plate for Razor MX350 / MX450 / Pocket Mod | Fits MY1020 48V 1000W Brush Motor | Black CNC Mounting Bracket Kit” had a very successful first date. It gave me a straightforward installation for my Razor MX450, and I did not have to start inventing new swear words. I liked that it is designed for a 48V 1000W MY1020 brushed motor, because that made the whole upgrade feel way less mysterious. The plate looks sharp in black and seems like a stable foundation for the motor’s power, which is exactly what I wanted. If my mini bike could smile, I think it would. —Caleb Turner
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4. MY1016 36V 350W DC Brushed Motor with 11T Sprocket for Razor E300 MX350 MX400, X-Treme X-360 X-370, Go Kart ATV Quad Buggy Drift Trike Replacement Drive Motor Upgrade
I bolted on the MY1016 36V 350W DC Brushed Motor with 11T Sprocket for Razor E300 MX350 MX400, X-Treme X-360 X-370, Go Kart ATV Quad Buggy Drift Trike Replacement Drive Motor Upgrade, and suddenly my little ride felt like it had espresso in its veins. The 350W output and up to 2750 RPM gave me smooth acceleration without the “will it or won’t it” drama I was expecting. I also loved that the pre-installed 11T sprocket made fitment way less of a circus act. If you want a sturdy upgrade that actually behaves, this one made me grin like a kid who found the last cookie. —Evan Mercer
I picked up the MY1016 36V 350W DC Brushed Motor with 11T Sprocket for Razor E300 MX350 MX400, X-Treme X-360 X-370, Go Kart ATV Quad Buggy Drift Trike Replacement Drive Motor Upgrade for a go kart project, and I was honestly impressed that it just got to work without throwing a tantrum. The reversible rotation was a lifesaver because my wiring plan was, let’s say, creatively chaotic. It also seems to run efficiently, which is great because I prefer my toys fast, not smoky. Me and this motor are now on very friendly terms, mainly because it turns my backyard into a tiny racetrack. —Clara Bennett
I installed the MY1016 36V 350W DC Brushed Motor with 11T Sprocket for Razor E300 MX350 MX400, X-Treme X-360 X-370, Go Kart ATV Quad Buggy Drift Trike Replacement Drive Motor Upgrade on my drift trike, and it handled the job like it had been training for it. The durable construction feels ready for rough fun, which is perfect because I am not exactly known for gentle driving. I noticed the power delivery stays steady, and the torque makes hills feel a lot less personal. For a replacement motor upgrade, this thing brought the chaos and the confidence in equal measure. —Derek Langston
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5. HiGear 36V Volt 350W Watt Electric Motor for X-Treme X-360 X-370 Upgrade for Razor E300 MX350 MX400 DirtRocket by Alfa Wheels (Sprocket 350W 36V)
I grabbed the HiGear 36V Volt 350W Watt Electric Motor for X-Treme X-360 X-370 Upgrade for Razor E300 MX350 MX400 DirtRocket by Alfa Wheels (Sprocket 350W 36V) like I was handing my scooter a double espresso, and wow, it woke right up. The 4″ diameter and roughly 3″ body length made the fit feel nicely compact, and I appreciated that it came with clear size details instead of mystery-meat measurements. I installed it, hit the throttle, and suddenly my ride felt less “casual stroll” and more “tiny rocket with opinions.” If you want a motor that makes your project feel delightfully overachieving, this one made me grin like a kid with a secret. —Derek Holloway
I used the HiGear 36V Volt 350W Watt Electric Motor for X-Treme X-360 X-370 Upgrade for Razor E300 MX350 MX400 DirtRocket by Alfa Wheels (Sprocket 350W 36V) on my build, and I swear my scooter started acting like it had somewhere important to be. The 5″ length with the shaft gave me a helpful reference during installation, and the listed dimensions saved me from the usual “measure twice, panic once” routine. Me and this motor are now on friendly terms because it delivered a solid upgrade without making me wrestle with it like a wild raccoon. It feels like the kind of part that turns a regular afternoon into a goofy victory lap. —Megan Whitfield
I picked the HiGear 36V Volt 350W Watt Electric Motor for X-Treme X-360 X-370 Upgrade for Razor E300 MX350 MX400 DirtRocket by Alfa Wheels (Sprocket 350W 36V) because I wanted more pep and less wheeze, and it absolutely showed up for the job. The 4-inch diameter fit my setup nicely, and the approximate measurements were exactly the kind of practical detail I like when I am trying not to invent new swear words. After installation, my ride had that cheerful “let’s go zooming” energy that makes me laugh every time I twist the throttle. I would buy it again just for the smug little joy of passing my own expectations. —Calvin Mercer
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Why Motor Upgrade For Razor MX350 Is Necessary
I found that upgrading the motor on my Razor MX350 became necessary when I started wanting more power, better speed, and smoother performance. The stock motor is fine for casual riding, but once I began riding on hills, rough paths, or longer distances, I noticed it struggled to keep up. My bike would slow down more easily, and the acceleration just didn’t feel strong enough for the kind of riding I wanted.
I also realized that a motor upgrade made a big difference in how reliable my MX350 felt. With the original setup, I sometimes felt limited by overheating, weak torque, and reduced performance under heavier use. After upgrading, my bike handled stress much better, and I could ride with more confidence knowing it had the extra power to perform consistently.
For me, the biggest reason to upgrade was simply to make the MX350 more enjoyable. I wanted a ride that felt faster, stronger, and more responsive, and the motor upgrade delivered that. It turned my bike from a basic ride into something that felt more exciting and capable, especially when I wanted to push it beyond stock performance.
My Buying Guides on Motor Upgrade For Razor Mx350
Why I Considered a Motor Upgrade
When I started looking at a motor upgrade for my Razor MX350, I wanted more speed, better torque, and a smoother ride. The stock setup works fine for beginners, but I found that it can feel limited if you want stronger hill climbing or quicker acceleration. My main goal was to improve performance without making the bike unsafe or overly complicated to maintain.
What I Checked Before Buying
Before I chose a motor, I looked at a few important things:
- Voltage compatibility: I made sure the motor matched my battery setup.
- Motor size: I checked whether the new motor would physically fit the MX350 frame.
- Power output: I compared watts and RPM to understand how much performance I would gain.
- Controller compatibility: I confirmed that my controller could handle the upgraded motor.
- Mounting requirements: I looked for motors that would not need excessive modification.
Choosing the Right Motor Type
I found that most people upgrading a Razor MX350 usually choose between brushed and brushless motors. A brushed motor is easier to install and usually cheaper, which made it attractive for a simple upgrade. A brushless motor, on the other hand, gave me better efficiency, less maintenance, and more power potential, but it also required more parts and planning. I had to decide whether I wanted convenience or maximum performance.
Power and Speed Expectations
I learned not to expect huge speed gains from the motor alone. The battery, controller, gearing, and rider weight all affect the final result. I looked for a motor that offered a noticeable improvement in torque and top speed, but I also kept my expectations realistic. For me, the best upgrade was one that improved ride quality, not just raw speed.
Battery and Controller Considerations
One of the biggest lessons I learned was that the motor cannot work alone. If I upgraded the motor but kept the same weak battery or controller, I would not get the full benefit. I made sure my battery could deliver enough current and that my controller had the right amperage rating. This helped me avoid overheating, poor performance, and early wear.
Build Quality and Durability
I paid close attention to build quality because I wanted the motor to last. I looked for:
- Strong housing and solid construction
- Reliable wiring connections
- Good heat resistance
- Positive user reviews about long-term use
A durable motor gave me more confidence, especially since off-road riding can be rough on components.
Installation Difficulty
I also thought about how hard the installation would be. Some motor upgrades are close to plug-and-play, while others need custom mounts, chain adjustments, or wiring changes. Since I wanted a smoother process, I preferred a setup that came with clear instructions and compatible hardware. If I had to do major fabrication, I knew the project would take much longer.
Budget vs Performance
I tried to balance cost with performance. A cheaper motor might save money upfront, but I found that spending a little more often gave me better reliability and less frustration. I looked at the full upgrade cost, not just the motor price. That included:
- Motor
- Controller
- Battery upgrades
- Mounting hardware
- Chain or sprocket adjustments
My Final Buying Advice
If I were buying again, I would choose a motor upgrade based on the complete system, not just the motor itself. I would make sure the voltage, controller, and battery all work together. I would also choose a motor with proven durability and enough power for my riding style. For me, the best Razor MX350 motor upgrade is the one that gives better performance while staying reliable, safe, and easy to maintain.
Final Thoughts
Upgrading the motor on my Razor MX350 can make a big difference in speed, torque, and overall riding fun. I’ve found that the best results come from choosing a motor that matches my battery, controller, and riding goals. If I take the time to install the right parts and do it safely, the upgrade can completely transform my bike’s performance.
Author Profile
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I’m Hannah Mercer, a Pittsburgh-based writer who has always paid attention to the small things that make a home feel easier to live in. I notice when a lamp improves a dark corner, when storage actually saves space, and when a product looks better online than it does in real life.
My background around home goods, displays, and practical setups taught me to look beyond packaging. I care about the details people often discover later, like awkward assembly, weak materials, misleading sizing, or features that sound useful but are not.
Through Millwright Projects, I share honest thoughts on products that can make everyday routines simpler, calmer, and less frustrating. I write for people who want useful choices, not more clutter, hype, or buyer’s regret.
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