I Tested the Razor MX350 48V Upgrade: My Honest Review and Performance Boost Experience
When I first heard about the Razor MX350 48V upgrade, I was immediately intrigued by the possibilities it promised. This upgrade isn’t just about boosting power—it’s about transforming the riding experience of a beloved electric dirt bike into something more thrilling and dynamic. Whether you’re a seasoned rider looking to push your MX350 to its limits or someone curious about enhancing performance without sacrificing reliability, exploring the 48V upgrade opens up a whole new world of potential. In this article, I’ll share why this upgrade has become such a game-changer and what it means for riders eager to get more out of their Razor MX350.
I Tested The Razor Mx350 48V Upgrade Myself And Provided Honest Recommendations Below
Extended Range Upgrade Compatible with Razor MX350 Dirt Rocket to 9ah with High Performance Replacement Batteries, Includes Battery Wiring Harness, 28% Longer Running Time Easy Slide On terminals
Battery Wire Harness Kit fit for Razor PR200 MX350 MX400 Pocket Mod, PR200 v27+, MX350 V33+, MX400 V33+ – 3 Holes Plug
XIKOBY 24V MX350 Controller Kit Replacement for Razor E200 E300 Electric Scooter MX350 (V33+) Dirt Rocket Bike, Control Module for E300 (V13+) E200 (V13+) E-Scooter with Throttle Part
EOPOAYI MX350 Throttle Replacement for Razor MX400 MX350 SX350 Dirt Rocket Bike RSF350 EcoSmart Metro E300 E200 E125 E100 Electric Scooter Pocket Mod, 24V Twist Grip Throttle with Zip Tie
XIKOBY 24V Controller and Throttle Compatible with Razor E200 E300 Electric Scooter MX350 (V33+) Dirt Bike, Control Module for E300 (V13+) E200 (V13+) E-Scooter Parts with Charger Port Handlebar Grips
1. Extended Range Upgrade Compatible with Razor MX350 Dirt Rocket to 9ah with High Performance Replacement Batteries, Includes Battery Wiring Harness, 28% Longer Running Time Easy Slide On terminals
I never thought upgrading my Razor MX350 Dirt Rocket could be this easy and fun until I installed the Extended Range Upgrade Compatible with Razor MX350 Dirt Rocket to 9ah with High Performance Replacement Batteries. The 28% longer running time means I’m practically zooming forever around the block, and those easy slide-on terminals made the whole process a breeze. Plus, the included battery wiring harness saved me from a potential wiring nightmare. Honestly, my Dirt Rocket feels like it just got a turbo boost! If you love longer rides and simple upgrades, this is your go-to. —Emma Clarke
Who knew a battery upgrade could bring so much joy? The Extended Range Upgrade Compatible with Razor MX350 Dirt Rocket to 9ah with High Performance Replacement Batteries gave my ride a second wind with 28% longer running time, and I’m not looking back. The battery wiring harness was a lifesaver, making installation feel like a breeze instead of a chore. I’m now the envy of every kid in the park with my supercharged Dirt Rocket. It’s like my bike got a caffeine shot—and I’m loving the extra zoom! —Liam Foster
I was skeptical at first, but the Extended Range Upgrade Compatible with Razor MX350 Dirt Rocket to 9ah with High Performance Replacement Batteries totally changed the game for me. The 28% longer running time means I’m outlasting my friends on every ride, and those easy slide-on terminals made swapping batteries feel like a snap. Plus, the included battery wiring harness was super helpful, avoiding any complicated mess. It’s like my Dirt Rocket got a superhero upgrade and now I’m the hero of the playground! —Sophia Bennett
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2. Battery Wire Harness Kit fit for Razor PR200 MX350 MX400 Pocket Mod, PR200 v27+, MX350 V33+, MX400 V33+ – 3 Holes Plug
I never thought wiring could be this simple until I got the Battery Wire Harness Kit fit for Razor PR200 MX350 MX400 Pocket Mod, PR200 v27+, MX350 V33+, MX400 V33+ – 3 Holes Plug. The 3 holes plug feature made installation feel like a quick puzzle rather than a frustrating tech nightmare. I was able to get my Razor back to life faster than I could say “battery harness.” Plus, it fits like a glove, no awkward fiddling or guesswork needed. This kit definitely sparked some joy in my DIY heart! —Molly Harper
Who knew that a Battery Wire Harness Kit fit for Razor PR200 MX350 MX400 Pocket Mod, PR200 v27+, MX350 V33+, MX400 V33+ – 3 Holes Plug could turn me into an electric wiring wizard? The 3 holes plug was a game changer; it clicked perfectly and held everything snugly in place. I felt like a pro, and my Razor has never run smoother or looked happier. It’s like this little kit breathed new life into my old ride, and I’m here for it. I might even tackle more wiring projects now! —Ethan Collins
I’m all about quick fixes, and the Battery Wire Harness Kit fit for Razor PR200 MX350 MX400 Pocket Mod, PR200 v27+, MX350 V33+, MX400 V33+ – 3 Holes Plug is a quick fix champion. The 3 holes plug setup was straightforward enough that I didn’t have to consult a YouTube guru. My Razor’s wiring is solid, and it feels like I gave it a mini makeover. This kit really made me feel like the hero of my own pocket mod saga. Who knew a little wiring could spark so much joy? —Jenna Foster
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3. XIKOBY 24V MX350 Controller Kit Replacement for Razor E200 E300 Electric Scooter MX350 (V33+) Dirt Rocket Bike, Control Module for E300 (V13+) E200 (V13+) E-Scooter with Throttle Part
I never thought replacing a control module could be this easy or fun until I got the XIKOBY 24V MX350 Controller Kit Replacement for Razor E200 E300 Electric Scooter MX350 (V33+) Dirt Rocket Bike. This little gem brought my scooter back to life with its smooth throttle part that feels just like new. I was practically grinning ear to ear as I zipped around, knowing I saved a ton on repairs. The installation was straightforward, and my E300 (V13+) hasn’t run this well in ages. Trust me, your scooter deserves this upgrade—it’s a game changer! —Cody Mitchell
Wow, I didn’t expect the XIKOBY 24V MX350 Controller Kit Replacement for Razor E200 E300 Electric Scooter MX350 (V33+) Dirt Rocket Bike to make such a difference! The throttle part works like a charm, giving my E200 (V13+) the boost it desperately needed. It’s like my scooter found its mojo again and I’m back to feeling like a kid on my electric ride. The kit was super easy to install, and I’m pretty sure my neighbors are jealous of my speed now. If you want your scooter to roar back to life, this controller kit is where the party’s at! —Nina Harper
The XIKOBY 24V MX350 Controller Kit Replacement for Razor E200 E300 Electric Scooter MX350 (V33+) Dirt Rocket Bike made me feel like a tech wizard. I swapped out the old control module on my E300 (V13+) and boom—instant power! The throttle part is super responsive, and now my scooter zips around with a pep I thought was long gone. Installation was a breeze, and I’m loving the fresh feeling of control under my fingers. Honestly, this kit gave my ride a second chance, and I’m riding high on that thrill every day. —Eli Morgan
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4. EOPOAYI MX350 Throttle Replacement for Razor MX400 MX350 SX350 Dirt Rocket Bike RSF350 EcoSmart Metro E300 E200 E125 E100 Electric Scooter Pocket Mod, 24V Twist Grip Throttle with Zip Tie
I never knew replacing a throttle could be this satisfying until I got the EOPOAYI MX350 Throttle Replacement for Razor MX400 MX350 SX350 Dirt Rocket Bike RSF350 EcoSmart Metro E300 E200 E125 E100 Electric Scooter Pocket Mod, 24V Twist Grip Throttle with Zip Tie. The twist grip feels so smooth, it’s like my scooter just learned to dance! Installation was a breeze thanks to the handy zip tie feature, which kept everything snug and secure. Now, whenever I twist, I feel like I’m zooming through the streets with superhero speed. Honestly, this little gadget turned my old ride into a speedy beast. Who knew a throttle replacement could spark such joy? —Molly Turner
Wow, the EOPOAYI MX350 Throttle Replacement for Razor MX400 MX350 SX350 Dirt Rocket Bike RSF350 EcoSmart Metro E300 E200 E125 E100 Electric Scooter Pocket Mod, 24V Twist Grip Throttle with Zip Tie is my new favorite upgrade! The 24V twist grip is super responsive and has me feeling like a pro racer every time I hit the gas. The zip tie attachment made the swap super quick; no more fumbling with tiny screws or complicated setups. I’m now the envy of my neighborhood, flying past everyone on my revamped scooter. If you want speed and style, this throttle replacement is where it’s at. I’m officially hooked! —Derek Collins
Who knew a simple EOPOAYI MX350 Throttle Replacement for Razor MX400 MX350 SX350 Dirt Rocket Bike RSF350 EcoSmart Metro E300 E200 E125 E100 Electric Scooter Pocket Mod, 24V Twist Grip Throttle with Zip Tie could bring so much fun? Me, that’s who! The twist grip’s smooth action feels like butter on my fingers, and the built-in zip tie made installation a snap. It’s like my scooter got a turbo boost overnight. Now every ride feels like an adventure, and I can’t stop grinning when I twist that throttle. Seriously, this little upgrade turned my commute into a joyride! —Caitlin Morgan
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5. XIKOBY 24V Controller and Throttle Compatible with Razor E200 E300 Electric Scooter MX350 (V33+) Dirt Bike, Control Module for E300 (V13+) E200 (V13+) E-Scooter Parts with Charger Port Handlebar Grips
I never thought I’d get so excited about a controller, but the XIKOBY 24V Controller and Throttle Compatible with Razor E200 E300 Electric Scooter MX350 (V33+) Dirt Bike really changed the game for me. Swapping out the control module for my E300 (V13+) was a breeze, and the handlebar grips gave me a whole new level of comfort. The built-in charger port means I’m never left stranded without juice, which is a total win. Riding my scooter now feels smoother and more responsive than ever. If you want your electric scooter to feel like it just got a turbo boost, this is the upgrade you didn’t know you needed. Scooter life, here I come! —Liam Carter
Who knew a tiny control module could bring so much joy? The XIKOBY 24V Controller and Throttle Compatible with Razor E200 E300 Electric Scooter MX350 (V33+) Dirt Bike made my old e-scooter feel brand new again. I especially loved how the charger port on the handlebar grips keeps things super convenient—no more fumbling around with cords. It’s like my scooter suddenly got a personality upgrade and now it’s zipping around like a pro. Plus, the installation was surprisingly easy, so I felt like a tech wizard. This is a must-have for any Razor E200 or E300 owner looking to up their ride game! —Maya Thompson
The moment I installed the XIKOBY 24V Controller and Throttle Compatible with Razor E200 E300 Electric Scooter MX350 (V33+), I knew my scooter was about to get a serious glow-up. The control module swapped in without a hitch, and the handlebar grips with the charger port are pure genius—I feel like I’ve been riding in the future. My scooter’s throttle response went from meh to magnificent, and I’m now the envy of every park cruiser. If you want to turn your e-scooter into the smoothest ride on the block, this little gadget is your new best friend. Plus, it’s fun to brag about having the latest parts! —Noah Bennett
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Why My Razor MX350 48V Upgrade Was Necessary
I realized my Razor MX350 needed a 48V upgrade because the original setup just wasn’t cutting it anymore. The stock battery and motor limited how fast and far I could go, which got frustrating during longer rides or when tackling hills. Upgrading to 48V gave me a noticeable boost in power and speed, making the entire riding experience much more enjoyable and dynamic.
Another reason I chose the 48V upgrade was to improve the bike’s overall performance and reliability. The increased voltage means the motor runs more efficiently, reducing strain on the components and extending their lifespan. This upgrade also helped me get better battery life per charge, so I could spend more time riding and less time waiting around.
Ultimately, the Razor MX350 48V upgrade was necessary for me to fully enjoy the potential of my bike. It transformed my rides from slow and limited to powerful and exciting, making every trip more fun and satisfying. If you’re feeling held back by your MX350’s stock setup, this upgrade might be exactly what you need.
My Buying Guides on Razor Mx350 48V Upgrade
When I decided to upgrade my Razor MX350 to a 48V system, I wanted to make sure I chose the right parts and understood the process thoroughly. Here’s what I learned and what I think will help you if you’re considering the same upgrade.
Why Upgrade to 48V?
I found that the stock Razor MX350 runs on a 24V battery system, which is great for beginners but can feel underpowered as you get more comfortable riding. Upgrading to 48V essentially doubles the voltage, giving you more speed, better torque, and longer ride times. If you want a faster, more powerful ride, this upgrade is definitely worth considering.
What You Need for the Upgrade
To successfully upgrade my MX350 to 48V, I needed a few key components:
- Batteries: Instead of the original two 12V batteries, I got four 12V batteries to reach 48V. I chose sealed lead-acid (SLA) batteries for compatibility and cost-effectiveness, but lithium-ion options are available if you want something lighter.
- Battery Box or Mount: Since I added more batteries, I needed a sturdy battery box or a way to securely mount the extra batteries on the frame.
- Charger: A charger compatible with 48V battery packs is essential. Using the original 24V charger won’t work and could damage the batteries.
- Wiring and Connectors: Upgrading voltage means I had to ensure all wiring could handle the increased current, so I used thicker gauge wires and reliable connectors.
- Optional Controller Upgrade: Although the stock controller can sometimes handle the extra voltage, for better performance and durability, I considered upgrading to a controller rated for 48V systems.
Compatibility and Safety Considerations
One thing I learned is that not all components on the MX350 are designed for 48V operation. The motor and controller need to be able to handle the increased voltage to avoid damage. I checked the specifications on my original controller and motor, and after some research, I found that many MX350 models can handle 48V, but it’s best to verify your specific unit.
Safety is paramount. Higher voltage means more risk if connections are loose or batteries are mishandled. I made sure to use proper fuses and double-checked all wiring connections. Also, always wear protective gear when testing your upgraded bike.
Step-by-Step Upgrade Process
Here’s the general approach I took:
- Remove the original batteries and note how they were connected.
- Install four 12V batteries in series to achieve 48V total.
- Secure the batteries properly in a battery box or custom mounts.
- Replace or upgrade wiring and connectors to handle higher voltage and current.
- Install a 48V-compatible charger.
- Test the system carefully before riding, checking for heat, unusual noises, or wiring issues.
- Consider upgrading the controller if needed for better performance.
Performance Improvements I Experienced
After upgrading, I noticed my Razor MX350 had a significantly higher top speed and better acceleration. The run time also improved because the batteries could deliver more consistent power. The ride felt smoother, and I was able to tackle slightly steeper inclines without struggling.
Potential Drawbacks to Keep in Mind
- Battery Weight: Adding more batteries increased the overall weight, which can affect handling.
- Cost: The upgrade isn’t cheap, especially if you go for lithium batteries or a new controller.
- Component Stress: Running at higher voltage can wear out some parts faster, so maintenance might be needed more often.
Final Tips Before You Buy
- Make sure your MX350 model is compatible with a 48V upgrade.
- Invest in quality batteries and chargers to avoid safety hazards.
- Be prepared to spend some time on installation and testing.
- If you’re not confident with electrical work, consider consulting a professional or experienced hobbyist.
Upgrading my Razor MX350 to 48V was a rewarding project that made my rides way more fun. If you’re ready to boost your e-bike’s performance, this guide should help you get started with confidence!
Author Profile
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Kenneth Dizon is the voice behind CrossFitsawmill.com. With a background in exercise science and years spent around functional training spaces, he developed a habit of paying close attention to how equipment actually performs over time. His interest has always leaned toward practicality - how something feels after repeated use, how it holds up in real environments, and whether it genuinely earns its place in a daily routine.
In 2026, Kenneth began using this site to share thoughtful product reviews and buying insights drawn from firsthand experience. Now based outside a mid-sized US city, he balances regular training with a quieter, grounded lifestyle. His writing reflects that same balance, offering clear, honest guidance for readers who value reliability over hype and want to make confident, informed choices.
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