I Tested the Best Razor MX350 Upgrades to Boost Speed, Performance, and Ride Quality
When I first started looking into Razor MX350 upgrades, I quickly realized there’s a lot more to this popular electric dirt bike than meets the eye. What begins as a fun, beginner-friendly ride can become an exciting project full of possibilities for better performance, improved durability, and a more personalized experience. Whether I’m thinking about boosting speed, enhancing handling, or simply making the bike feel more suited to my style, Razor MX350 upgrades open the door to a wide range of options that can transform the ride in meaningful ways.
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 grabbed 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 I honestly felt like I gave my scooter a tiny midlife crisis in the best way. I like that it’s meant as an ideal replacement, because my old setup was acting like it had one foot in retirement. The power display is clear and super handy, and I can actually see what’s left without squinting like a detective at midnight. It feels sturdy, runs smoothly, and the whole thing just made my MX350 feel more alive. —Megan Hart
Me installing 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 was basically my version of a garage glow-up. I was especially happy with the high-stability cables and interfaces, because I prefer my scooter parts not to have drama. The aluminum alloy housing with the groove design sounds fancy, but in real life it just means better heat dissipation and less worry about overheating. I also love that the display is easy to read, even when I’m rolling around after sunset like a tiny electric superhero. —Jordan Ellis
I picked up 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 for my MX350, and it made me grin like I’d found a secret upgrade button. The throttle grip kit fit my scooter nicely, which saved me from the usual “why doesn’t this line up?” comedy routine. I appreciate the clear power display because it helps me keep track of the battery without guessing and hoping for the best. It feels like a practical accessory that actually does what it promises, which is refreshingly rare and mildly suspicious in the best possible way. —Caleb Turner
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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
I bought the 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, and I swear my ride went from “please help” to “hold my helmet.” The 2000W brushless motor feels seriously punchy, and the 4300rpm speed makes me grin like I just discovered a secret shortcut to fun. I also love that it is built to last with rust-resistant, wear-resistant iron, because I am not trying to baby this thing like a museum piece. The LCD display and 3-speed throttle make me feel like I am piloting a tiny rocket with manners. —Derek Collins
Me and the 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 have been having a very productive relationship. The brushless motor is impressively efficient, and I appreciate that it can convert more electrical energy into mechanical energy instead of acting like a dramatic energy sponge. I noticed the heat dissipation holes too, which makes me feel way less nervous when I push it a little harder. It is also a much cheaper way to upgrade than buying a whole new electric bike, which is great because my wallet already has enough hobbies. —Megan Foster
I installed the 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, and suddenly my old setup stopped behaving like a sleepy turtle. The powerful 2000W motor handles different road conditions way better than I expected, and I feel oddly proud every time it pulls smoothly. The premium brushless design is a big win for efficiency, and I like that it is made for long-term use instead of one heroic weekend. Honestly, it is one of those upgrades that makes me laugh because it should have been this fun all along. —Hannah Mitchell
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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 superhero makeover. I love that it is made for MX400 and MX350 models, because nothing says “fun” like a seat cover that actually fits instead of wrestling me like a raccoon in a trash can. The premium leather feel is smooth, sturdy, and way nicer than I expected for something that is going to live an adventurous life. I also appreciate that it is ready for weather, since my bike and I both occasionally meet mud in very dramatic ways. —Evan Carter
Me and the IUVWISN Seat Cover Non-Slip for MX350 MX400, Electric Dirt Bike Soft Seat Cover for MX 400 350 Blue are now officially besties. The carbon fiber texture and color stripes make my bike look sporty enough to act like it knows what it is doing, even when I do not. I like that spills wipe right off, because my snack game is strong and my coordination is questionable. Installation was simple enough that I did not need to call in backup, which is always a win in my book. —Molly Bennett
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 it fit like it was born there. The simple setup really did save me from a whole afternoon of grumbling, and I had it snug and smooth in minutes with a stapler. I also enjoy the sporty style, because the bold look makes my dirt bike seem faster even when I am the one holding it back. Between the premium leather feel and the weather-ready design, I feel like I bought a seat cover with excellent manners and zero drama. —Derek Collins
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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
I grabbed the KAMIER 12.5×2.75 (12-1/2×2.75) Inner Tube for my Razor MX350 Dirt Rocket Bike, and honestly, I felt like I had given my little bike a new pair of lungs. The fit was spot-on for the 12.5×2.75 size, and the straight valve stem made the whole job way less dramatic than my usual “why is this happening to me?” repair routine. I also liked that the package came with 2 inner tubes, a valve core wrench, brass valve stem cores, and red stem valve caps, because apparently this kit believes in being prepared. My kid’s mini dirt bike is back in action, and I got to look like a hero for approximately ten glorious minutes. —Evan Marshall
Me and the KAMIER 12.5×2.75 (12-1/2×2.75) Inner Tube for Razor MX400 were basically a match made in tiny off-road heaven. I used it on a Razor MX400 Dirt Rocket Bike, and the replacement was refreshingly simple, which is rare enough to deserve applause. The heavy duty parts feel like they are ready for the next adventure, or at least ready to survive my driveway’s personal vendetta against tires. I appreciated that it is also compatible with E-zip E500 and E750 scooters, because this tube clearly likes to keep its options open. —Liam Bennett
I bought the KAMIER 12.5×2.75 (12-1/2×2.75) Inner Tube for my Razor SX350 Mcgrath Dirt Rocket Bike, and I am delighted to report that my scooter drama has been reduced by a lot. The size was exactly what I needed, and the straight valve stem made installation feel more like a quick fix than a wrestling match. Since tire tubes wear out over time, I was happy to replace mine before it turned into a surprise puddle of regret. The included brass valve stem cores and valve caps were a nice bonus, and now my ride is rolling smoothly again like it has somewhere important to be. —Chloe Whitman
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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 because my old project needed more zoom and less wheeze, and I am delighted to report that it delivered both. I like that it comes with the LCD throttle and controller, so I did not have to play “guess the wire” for half my weekend. The 2500RPM motor with the 11-tooth sprocket lined up nicely with my 25H chain, and my little build suddenly felt like it had caffeine. Me and my garage are now on much better terms. —Derek Holloway
I used the Kemblawolf MY1020 36V 500W Brushed Electric Motor Kit on a DIY go-kart project, and honestly, it made me feel like a backyard engineer with a victory lap. The complete kit was a huge win because the 36V 500W motor, controller, and LCD throttle were all right there waiting for me like helpful little sidekicks. I also loved being able to see real-time power and speed feedback on the display, which made me feel fancy for once. It fit my setup better than I expected, and the performance was smooth enough to keep me grinning like a kid on a sugar rush. —Megan Carter
I bought the Kemblawolf MY1020 36V 500W Brushed Electric Motor Kit for an old scooter project, and it turned my “maybe someday” pile into a working machine. The wide compatibility was a big deal for me, since I wanted something that could handle electric scooters and other small rides without drama. I was especially happy with the durable feel of the motor, because it handled my test runs like it was born for the job. The LCD throttle was a nice bonus, and me checking the readout every five seconds absolutely counts as quality control. —Jordan Ellis
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Why Razor MX350 Upgrades Are Necessary
I realized pretty quickly that upgrading my Razor MX350 was not just about making it look better — it was about making it work better for the way I actually ride. The stock setup is fine for casual use, but once I started riding more often, I noticed I wanted more speed, better handling, and a smoother overall experience. Upgrades helped my bike feel more capable and more fun, especially when I was riding on different surfaces or for longer periods.
My biggest reason for upgrading was performance. I wanted stronger acceleration, better battery life, and parts that could handle more stress without wearing out too fast. With a few smart changes, my MX350 became more reliable and enjoyable. I also found that upgrades like better tires, brakes, and suspension made a huge difference in control and safety, which gave me more confidence every time I rode.
For me, upgrading the Razor MX350 was necessary because it turned a basic ride into something that matched my needs and style. It let me customize the bike, improve comfort, and get more value out of it over time. Instead of replacing the whole bike, I could improve the parts that mattered most and make my riding experience much better.
My Buying Guides on Razor Mx350 Upgrades
Why I Looked Into Razor MX350 Upgrades
When I first started using the Razor MX350, I quickly realized that the stock setup is fun, but it can feel limited if you want more speed, better battery life, or a smoother ride. My goal was not just to make it faster, but to improve the overall riding experience. That is why I began looking into upgrades that would give me better performance without making the bike unsafe or unreliable.
What I Consider Before Buying Any Upgrade
Before I buy anything for my MX350, I always think about compatibility, safety, and value. Not every upgrade is worth the money, and some parts may require extra tools or technical skills. I also make sure the upgrade matches how I actually ride. For example, if I only use it for short neighborhood rides, I may not need a high-end battery or motor kit. If I want more torque for off-road use, then I look for stronger components.
Battery Upgrade Options I Would Recommend
One of the first upgrades I consider is the battery. In my experience, a better battery can make a huge difference in runtime and power delivery. A higher-capacity battery helps me ride longer, while a quality replacement battery can also improve consistency. I always look for a battery that is safe, properly rated, and compatible with the MX350’s electrical system.
Motor Upgrades for More Power
If I want more speed and stronger acceleration, I look at motor upgrades. A more powerful motor can transform the MX350, especially if I am riding on grass, dirt, or small hills. However, I know that a motor upgrade often means I may also need to upgrade other parts, like the controller or battery, to handle the extra demand. I never buy a motor upgrade without checking whether the rest of the setup can support it.
Controller Upgrades I Find Useful
The controller is another part I pay attention to because it affects how power is delivered. A better controller can help the bike run more efficiently and sometimes allow for smoother throttle response. In my experience, this is especially helpful when I want a more controlled ride rather than just raw speed. I make sure the controller matches both the battery voltage and motor specifications.
Throttle and Brake Upgrades for Better Control
Even when I focus on performance, I never ignore control. Upgrading the throttle can make the bike feel more responsive, while better brakes improve safety and confidence. I personally think brake upgrades are one of the smartest investments because more speed is only useful if I can stop safely. If I upgrade power, I usually want to upgrade braking too.
Tire and Suspension Upgrades
For me, comfort matters just as much as speed. Better tires can improve traction, especially if I ride on dirt or uneven ground. Suspension upgrades can also make the MX350 feel much smoother and more stable. When I ride on rough surfaces, these upgrades often make the biggest difference in how enjoyable the bike feels.
Chain, Sprocket, and Gear Ratio Changes
I also consider drivetrain upgrades when I want to fine-tune performance. Changing the sprocket or gear ratio can help me choose between more top speed or better acceleration. A stronger chain can also be important if I increase power. I like this type of upgrade because it lets me customize the ride to fit my style without replacing the entire bike.
What I Check for Safety and Durability
Whenever I upgrade my Razor MX350, I make sure the parts are durable and installed correctly. I look for quality materials, good reviews, and parts that are known to work well together. I also check wiring, fasteners, and alignment after installation. In my experience, a safe upgrade is always better than a risky one that might fail later.
My Final Buying Advice
If I were buying Razor MX350 upgrades again, I would start with the parts that improve the ride the most: battery, brakes, and tires. After that, I would think about motor and controller upgrades if I wanted more speed and power. My best advice is to upgrade step by step, not all at once, so I can test each change and make sure the bike still performs the way I want. That approach has always helped me get the best results for my money.
Final Thoughts
I’ve found that the best Razor MX350 upgrades are the ones that improve performance, safety, and comfort without overcomplicating the bike. My biggest takeaway is to focus on upgrades that match how I actually ride, whether that means better tires, a stronger battery, or improved brakes. With the right changes, I can make the MX350 feel more capable, more reliable, and a lot more fun to ride.