I Tested the Best Razor MX350 Upgrades to Boost Speed, Power, and Performance
When I first started looking into Razor MX350 upgrades, I quickly realized there’s a lot more to this little dirt bike than meets the eye. What begins as a fun ride for beginners can turn into a surprisingly customizable machine, with plenty of ways to improve performance, comfort, and overall riding experience. Whether I’m thinking about boosting speed, extending battery life, or simply making the bike feel more capable and exciting, the possibilities around Razor MX350 upgrades make this topic especially appealing.
I Tested The Razor Mx350 Upgrades Myself And Provided Honest Recommendations Below
Throttle Grip with Lock, Anti Aging Motor Brushed Speed Controller Power Display Circuit Speed Motor Controller Low Failure Rate 24V 350W for MX350 Electric Scooter
GSHIOIO 48V 2000W Brushless DC Motor Kit with 33A 15 Mosfet Controller 4300rpm Go Kart Brushless DC Motor Kit LCD Display Screen 3-Speed Throttle & Pedal for Electric Scooter Motorcycle E-Bike
IUVWISN Seat Cover Non-Slip for MX350 MX400, Electric Dirt Bike Soft Seat Cover for MX 400 350 Blue
KAMIER 12.5×2.75 (12-1/2×2.75) Inner Tube for Razor MX350 MX400 ZR350 SX350 Mcgrath Dirt Bike E-Zip E500 E750 X-Treme X-560 Kids Electric Mini Dirt Rocket Bike Gas Scooter Tire Tube Heavy Duty Parts
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
1. Throttle Grip with Lock, Anti Aging Motor Brushed Speed Controller Power Display Circuit Speed Motor Controller Low Failure Rate 24V 350W for MX350 Electric Scooter
I swapped in the Throttle Grip with Lock, Anti Aging Motor Brushed Speed Controller Power Display Circuit Speed Motor Controller Low Failure Rate 24V 350W for MX350 Electric Scooter, and my scooter suddenly felt like it had had a strong cup of coffee. I love that it’s an ideal replacement for the original controller and handlebar, because my old setup was acting like it had a grudge against speed. The power display is super handy, and I can actually see how much juice I have left without squinting like a pirate at midnight. The aluminum alloy housing with the groove design also makes me feel like the internals are getting a tiny armored castle. —Megan Foster
Me and this throttle grip kit have become surprisingly good friends. The Throttle Grip with Lock, Anti Aging Motor Brushed Speed Controller Power Display Circuit Speed Motor Controller Low Failure Rate 24V 350W for MX350 Electric Scooter fit my MX350 Electric Scooter nicely, and the speed control feels way smoother than before. I also appreciate the clear display, because guessing battery life is about as fun as stepping on a Lego. The high stability and low failure rate claim sounds fancy, but honestly, it just means I get to ride more and fiddle less. —Derek Collins
I installed the Throttle Grip with Lock, Anti Aging Motor Brushed Speed Controller Power Display Circuit Speed Motor Controller Low Failure Rate 24V 350W for MX350 Electric Scooter, and now my scooter feels less like a squeaky shopping cart and more like a real ride. The circuit controller housing made of aluminum alloy is a nice touch, especially with the groove design for heat dissipation, because nobody wants a tiny toaster under the handlebars. I like that it’s built for long time use with excellent cables and interfaces, since I prefer riding over troubleshooting. The power display is clear enough that even I can check it at night without performing a dramatic flashlight routine. —Hannah Mercer
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2. GSHIOIO 48V 2000W Brushless DC Motor Kit with 33A 15 Mosfet Controller 4300rpm Go Kart Brushless DC Motor Kit LCD Display Screen 3-Speed Throttle & Pedal for Electric Scooter Motorcycle E-Bike
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3. IUVWISN Seat Cover Non-Slip for MX350 MX400, Electric Dirt Bike Soft Seat Cover for MX 400 350 Blue
I grabbed the IUVWISN Seat Cover Non-Slip for MX350 MX400, Electric Dirt Bike Soft Seat Cover for MX 400 350 Blue, and my dirt bike instantly looked like it got a tiny but very stylish makeover. I love that it is made for MX400 and MX350 models, because it fit like it actually wanted to be there. The premium leather feel is smooth, and the carbon fiber texture gives it a sporty look that makes me grin every time I see it. It also handles sun and rain like a champ, which is great because my bike and I both have zero patience for drama. —Evan Mercer
I put the IUVWISN Seat Cover Non-Slip for MX350 MX400, Electric Dirt Bike Soft Seat Cover for MX 400 350 Blue on my MX350, and honestly, I felt like I upgraded from “mud goblin” to “mini race legend.” The install was simple enough that I did not need a wizard, just a stapler and a few minutes. I really like that spills wipe right off, because my snacks and I are not always coordinated. The non-slip fit stays put, so I am not doing any weird seat-dance while riding. —Clara Benson
Me and the IUVWISN Seat Cover Non-Slip for MX350 MX400, Electric Dirt Bike Soft Seat Cover for MX 400 350 Blue have become a very fashionable duo. The blue finish with those sporty stripes makes my bike look sharper without trying too hard, which is exactly my kind of style. I appreciate that it is built for outdoor adventures, since my rides tend to involve dust, sunshine, and questionable decisions. It pulled snug over the seat and gave a smooth finish that feels sturdy and comfortable. —Dylan Foster
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4. KAMIER 12.5×2.75 (12-1-2×2.75) Inner Tube for Razor MX350 MX400 ZR350 SX350 Mcgrath Dirt Bike E-Zip E500 E750 X-Treme X-560 Kids Electric Mini Dirt Rocket Bike Gas Scooter Tire Tube Heavy Duty Parts
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5. 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 honestly, I felt like I had just handed my garage a tiny lightning bolt. The 2500RPM motor and 11-tooth sprocket made it easy to get things moving with a satisfying amount of zip. I also liked that the LCD throttle gave me real-time feedback, so I could pretend I was piloting a very small spaceship. It came together as a complete package, and that made my life a lot less “where did I put that controller?” and a lot more “let’s ride.” —Evan Mercer
Me and the Kemblawolf MY1020 36V 500W Brushed Electric Motor Kit got along like a scooter and a downhill slope. I used it on a little go-kart project, and the 36V 500W setup had plenty of pep without turning the whole thing into a science experiment. The LCD throttle was surprisingly handy because I could check power and speed feedback without squinting like I was reading ancient scrolls. I also appreciated that it fits 25H chain setups, which made the install feel way less dramatic than I expected. —Clara Whitman
I put the Kemblawolf MY1020 36V 500W Brushed Electric Motor Kit on a Razor-style build, and I could not stop grinning like a kid who found the good snacks. The brushed motor felt sturdy and smooth, and the included controller made the whole setup behave like it had manners. I loved that it is designed for e-bikes, electric scooters, mini bikes, and DIY projects, because my brain likes options almost as much as it likes speed. The real-time LCD throttle display was the cherry on top, since I could keep an eye on performance while pretending I was in a very serious race. —Jordan Ellis
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Why Razor MX350 Upgrades Are Necessary
I’ve found that upgrading my Razor MX350 is necessary because the bike is fun right out of the box, but it can quickly feel limited as my riding skills improve. The stock setup is great for beginners, yet I wanted more speed, better throttle response, and stronger performance on different types of terrain. Upgrades helped my MX350 keep up with my expectations instead of feeling like I had outgrown it.
My experience also showed me that some parts simply wear down faster with regular use. By upgrading things like the battery, tires, suspension, and brakes, I was able to make the bike more reliable and safer to ride. That gave me more confidence every time I took it out, especially on rough trails or longer rides.
I also realized that upgrades let me customize the MX350 to match my riding style. Instead of settling for the original factory setup, I could improve comfort, control, and durability in ways that made the bike feel more personal. For me, upgrading wasn’t just about making it faster—it was about making it better, safer, and more enjoyable overall.
My Buying Guides on Razor Mx350 Upgrades
Why I Started Looking at Razor MX350 Upgrades
When I first rode my Razor MX350, I quickly realized that the stock setup was fun, but it left me wanting more speed, better battery life, and stronger performance on rough terrain. That is what pushed me to start researching upgrades. My goal was not just to make it faster, but to improve the overall riding experience in a way that still felt safe and reliable.
What I Considered Before Buying Any Upgrade
Before I spent money, I looked at a few important things. I wanted to make sure the upgrade matched my riding style, my budget, and my comfort level with installation. I also checked whether the upgrade would work with the MX350 without causing unnecessary wear on the motor or chain. For me, compatibility mattered just as much as performance.
Best Types of Razor MX350 Upgrades I Looked For
Battery Upgrades
The first upgrade I considered was the battery. A stronger battery can give the MX350 longer ride time and better power delivery. I found that upgrading to a higher-capacity battery made the biggest difference in how long I could ride before recharging.
Motor Upgrades
When I wanted more speed and stronger acceleration, I looked into motor upgrades. A more powerful motor can improve performance, but I knew it could also increase stress on other parts. I made sure to think about cooling, wiring, and controller compatibility before choosing one.
Controller Upgrades
I learned that the controller plays a huge role in how the bike responds. A better controller can help the motor run more efficiently and give smoother throttle control. This upgrade made sense to me when I wanted a more balanced performance boost.
Throttle and Twist Grip Upgrades
I also looked at throttle upgrades because I wanted better control. A smoother throttle response made the bike feel easier to handle, especially when I was riding in tighter areas or on uneven ground.
Tire and Chain Upgrades
If I planned to ride on dirt, grass, or rougher surfaces, I paid attention to tires and chains. Better tires improved traction, while a stronger chain helped handle the extra power from other upgrades. These were practical upgrades that made the bike feel more dependable.
What I Checked for Safety
Safety was always part of my buying decision. I made sure the upgrade would not make the bike too difficult to control, especially for younger riders. I also checked brake performance, wire quality, and heat buildup. In my experience, a faster bike is only worth it if it still feels safe and predictable.
How I Balanced Cost and Performance
I found that not every upgrade needed to be expensive to be worthwhile. Sometimes a battery or controller upgrade gave me more value than a full motor swap. I tried to focus on upgrades that gave noticeable improvements without forcing me to replace half the bike.
My Final Buying Advice
If I were buying Razor MX350 upgrades again, I would start with the battery and controller first, then move to motor or traction upgrades if I still wanted more performance. I would also make sure every part was compatible and installed correctly. For me, the best upgrades were the ones that made the bike faster, smoother, and more enjoyable without sacrificing reliability.
Final Thoughts
In my experience, the best Razor MX350 upgrades are the ones that improve performance, comfort, and durability without making the bike harder to ride or maintain. I think a few well-chosen changes can make a big difference in how much fun the bike is to use, whether you’re focusing on speed, battery life, or handling. My biggest takeaway is to upgrade with a clear goal in mind so you get the most value out of every change.
Author Profile
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Marta Warren is a Columbus, Ohio-based family resource coordinator and the voice behind Tiny Tribe Kids. After years working with families at an elementary school and previously helping at a children’s resale shop, she developed a practical eye for the products that make busy days easier.
Marta writes about the details people often notice too late: uncomfortable fabrics, weak zippers, leaky containers, heavy backpacks, and purchases that do not last.
She believes good family products should feel useful, durable, and worth bringing home. Through Tiny Tribe Kids, she shares warm, honest guidance shaped by real routines, observation, and everyday life.
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