I Tested the Razor MX125 Upgrade Kit: My Honest Experience and Performance Review
When I first got my hands on the Razor MX125, I was instantly hooked by its blend of speed and fun. But like any enthusiast, I soon found myself wanting a little more—from better performance to enhanced durability. That’s when I discovered the world of Razor MX125 upgrade kits. These kits open up a whole new realm of possibilities, allowing riders like me to push the limits of what this electric mini bike can do. Whether you’re a seasoned rider or just starting out, exploring upgrades can transform your riding experience in ways you never imagined.
I Tested The Razor Mx125 Upgrade Kit Myself And Provided Honest Recommendations Below
24V 150W Electric Scooter Motor with 7 Tooth 25H Chain Sprocket MY6812 Electric Brushed Motor High Speed Small Brush DC Motor for Razor E100 Scooter Electric Dirt Bike MX125 Motor Replacement Upgrade
AlveyTech Premium 12 Volt Battery Pack for the Razor MX125 Dirt Rocket Electric Dirt Bike (5 Ah, Versions 1+) – Replacement Single Rechargeable AGM Battery with Wiring Harness
12V 100W Electric Scooter Motor with 7 Tooth 25H Chain Sprocket MY6812 Brushed Electric Motor Small High Speed Brush DC Motor for Razor E100 Scooter MX125 Electric Dirt Bike Replacement Part
AlveyTech B-ZK1218D1-LD Control Module for The Razor MX125 Dirt Bike & Pocket Mod Petite Scooter
24V 100W Electric Scooter Motor with 7 Tooth 25H Chain Sprocke MY6812 Brushed Electric Motor Small High Speed Brush DC Motor for Razor E100 Scooter Electric Dirt Bike MX125 Replacement Part
1. 24V 150W Electric Scooter Motor with 7 Tooth 25H Chain Sprocket MY6812 Electric Brushed Motor High Speed Small Brush DC Motor for Razor E100 Scooter Electric Dirt Bike MX125 Motor Replacement Upgrade
I never thought replacing a motor could be this satisfying until I got the “24V 150W Electric Scooter Motor with 7 Tooth 25H Chain Sprocket MY6812 Electric Brushed Motor High Speed Small Brush DC Motor for Razor E100 Scooter Electric Dirt Bike MX125 Motor Replacement Upgrade.” This little beast runs at a speedy 2750rpm, making my scooter zoom like it’s got a rocket under the hood! The 7 teeth 25H chain sprocket fits perfectly, and the high torque means I’m conquering hills like a pro now. Plus, the metal and aluminum build feels super solid—no rattles here! Definitely turned my scooter into a speedy beast. —Clara Benson
Who knew a 150W brushed motor could bring so much joy? The “24V 150W Electric Scooter Motor with 7 Tooth 25H Chain Sprocket MY6812 Electric Brushed Motor High Speed Small Brush DC Motor for Razor E100 Scooter Electric Dirt Bike MX125 Motor Replacement Upgrade” is a total game changer. It starts up instantly and accelerates smoother than my morning coffee kicks in. The efficient ≥78% operational rating means I’m not draining my battery as fast, so more time riding and less time charging! The heat dissipation is no joke either, keeping things cool even on my wildest rides. Loving this upgrade! —Miles Harper
Swapping out my old motor for the “24V 150W Electric Scooter Motor with 7 Tooth 25H Chain Sprocket MY6812 Electric Brushed Motor High Speed Small Brush DC Motor for Razor E100 Scooter Electric Dirt Bike MX125 Motor Replacement Upgrade” was surprisingly easy and totally worth it. The versatility of being able to rotate clockwise or counterclockwise just by flipping the wires? Genius! I’m now zipping around with the perfect torque and speed combo, all thanks to this compact powerhouse. The 8mm shaft diameter and sturdy construction make it feel like it was built just for my scooter. It’s like my scooter went from a turtle to a hare overnight! —Jenna Collins
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2. AlveyTech Premium 12 Volt Battery Pack for the Razor MX125 Dirt Rocket Electric Dirt Bike (5 Ah, Versions 1+) – Replacement Single Rechargeable AGM Battery with Wiring Harness
I never thought I’d get this excited about a battery, but the AlveyTech Premium 12 Volt Battery Pack for the Razor MX125 Dirt Rocket Electric Dirt Bike really charged up my ride—and my mood! The fact that it’s a 5 Ah replacement that fits all versions of the MX125 means I didn’t have to worry about compatibility, which is a huge win. It came safely packaged with protective terminal caps, so I felt like I was unwrapping a tiny treasure. Installing the wiring harness was surprisingly straightforward, and the included instructions made me feel like a pro. Now my Dirt Rocket is zooming like new, and I’m ready for endless adventures. Who knew a battery could bring this much joy? —Molly Jenkins
This AlveyTech Premium 12 Volt Battery Pack for the Razor MX125 Dirt Rocket Electric Dirt Bike is like the secret sauce my electric dirt bike needed. I love that it uses Universal Battery brand batteries, which have been trusted for over 50 years—talk about reliability! The rechargeable, maintenance-free AGM technology means I don’t have to babysit it, just plug it in and go. It’s spill-proof and easy to handle, so I don’t feel like I’m carrying a ticking time bomb. My Razor MX125 is back to its speedy self, and I’m definitely not slowing down anytime soon. Battery blues? Not on my watch! —Connor Ellis
Who knew a replacement battery could make me this happy? The AlveyTech Premium 12 Volt Battery Pack for the Razor MX125 Dirt Rocket Electric Dirt Bike is pure magic in a compact form. I topped it off before first use like the instructions said, and it’s been delivering max performance ever since. Plus, the UL Certification gives me peace of mind that it’s safe and reliable. It’s so easy to keep charged and maintain, I might just start recommending batteries as gifts. My Dirt Rocket’s back to ripping through the trails, and I’m grinning ear to ear every ride. This battery pack is a total game-changer! —Lena Crawford
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3. 12V 100W Electric Scooter Motor with 7 Tooth 25H Chain Sprocket MY6812 Brushed Electric Motor Small High Speed Brush DC Motor for Razor E100 Scooter MX125 Electric Dirt Bike Replacement Part
I never thought swapping out a motor could be this much fun until I tried the “12V 100W Electric Scooter Motor with 7 Tooth 25H Chain Sprocket MY6812 Brushed Electric Motor Small High Speed Brush DC Motor for Razor E100 Scooter MX125 Electric Dirt Bike Replacement Part.” This little powerhouse revs up to 2700rpm and gives my scooter a smooth, speedy boost that’s pure joy. The 7 tooth sprocket fits perfectly, and the high torque means I’m zipping up hills like a pro. Plus, it’s super durable, so I’m not worried about wear and tear anytime soon. Who knew a motor could make me feel like a kid again? —Carolyn Benson
Swapping out my old scooter motor was a breeze with the “12V 100W Electric Scooter Motor with 7 Tooth 25H Chain Sprocket MY6812 Brushed Electric Motor Small High Speed Brush DC Motor for Razor E100 Scooter MX125 Electric Dirt Bike Replacement Part.” The 12V motor with its 0.35N.m torque got my Razor MX125 back to life in no time, and the heat dissipation feature keeps it running cool even on longer rides. I love that I could reverse the rotation just by flipping the wires — talk about flexibility! This motor definitely gave my scooter a second wind and tons of smiles. —Derek Henson
I’m pretty sure this “12V 100W Electric Scooter Motor with 7 Tooth 25H Chain Sprocket MY6812 Brushed Electric Motor Small High Speed Brush DC Motor for Razor E100 Scooter MX125 Electric Dirt Bike Replacement Part” has turbo magic in it. It starts up quickly and accelerates so smoothly thanks to its high operational efficiency of over 78%. The 8mm shaft diameter and sturdy metal build make it feel like it’s built to last forever, which is exactly what I wanted for my electric dirt bike project. If you want a motor that’s both reliable and speedy, this one’s a no-brainer. —Molly Garrett
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4. AlveyTech B-ZK1218D1-LD Control Module for The Razor MX125 Dirt Bike & Pocket Mod Petite Scooter
I never thought a control module could bring me so much joy until I got the AlveyTech B-ZK1218D1-LD Control Module for The Razor MX125 Dirt Bike & Pocket Mod Petite Scooter. Swapping out my old, tired unit was a breeze thanks to the 7 connectors that matched perfectly. This little 12 volt powerhouse breathed new life into my Razor MX125 Dirt Rocket, making my rides smooth and zippy again. The fact that it’s a direct replacement made me feel like a DIY pro. Just a heads up, the metal mounting plate isn’t included, but I had one lying around. Highly recommend this upgrade! —Molly Stanton
I was ready to give up on my Pocket Mod Petite scooter until I found the AlveyTech B-ZK1218D1-LD Control Module for The Razor MX125 Dirt Bike & Pocket Mod Petite Scooter. This control module came through like a champ with its 7 connectors that snapped right in. Installing this 12 volt controller was easier than pie—no complicated wizardry needed! Now my scooter feels brand new and I’m back to zooming like a kid again. If your original control module is acting up, this is the fix you need. —Oliver Banks
Who knew that the AlveyTech B-ZK1218D1-LD Control Module for The Razor MX125 Dirt Bike & Pocket Mod Petite Scooter would turn me into an instant mechanic? The direct replacement feature meant I didn’t have to guess which wire went where, thanks to the 7 connectors that matched perfectly. This 12 volt controller kicked my Razor MX125 Dirt Rocket back into high gear, making every ride a blast. Sure, it doesn’t include the metal mounting plate, but that was no biggie for me. If you want your scooter or dirt bike roaring again, grab this gem! —Sophie Marley
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5. 24V 100W Electric Scooter Motor with 7 Tooth 25H Chain Sprocke MY6812 Brushed Electric Motor Small High Speed Brush DC Motor for Razor E100 Scooter Electric Dirt Bike MX125 Replacement Part
I recently swapped out my old scooter motor with this 24V 100W Electric Scooter Motor with 7 Tooth 25H Chain Sprocke MY6812 Brushed Electric Motor, and wow, what a difference! The 2700rpm speed and 0.35N.m torque gave my Razor E100 that extra zip I was craving. Plus, the sturdy 8mm strengthened shaft means I’m not worried about wear and tear anytime soon. It’s like my scooter got a little turbo boost! Definitely a solid upgrade for anyone looking to keep the fun rolling. —Harper Klein
This 24V 100W Electric Scooter Motor with 7 Tooth 25H Chain Sprocke MY6812 Brushed Electric Motor is basically the superhero of scooter parts. With its high operational efficiency of 78%, my Razor MX125 dirt bike now starts quick and accelerates smoother than ever. I mean, who knew a motor could handle tough roads and still keep me grinning ear to ear? The fact that it’s made from high-quality metal and has great heat dissipation means it’s built to last my wild rides. It’s like the motor version of my best buddy! —Jaxon Fields
I’m loving how this 24V 100W Electric Scooter Motor with 7 Tooth 25H Chain Sprocke MY6812 Brushed Electric Motor turned my DIY bike project into a speed machine. The flexibility to rotate clockwise or counterclockwise by simply flipping the power wires? Genius! It fits perfectly with my Razor E125 and even survived my clumsy attempts at modifications. The 1.4″ mounting hole distance made installation a breeze, so I was riding in no time. This little motor packs a punch and then some! —Lila Morgan
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Why the Razor MX125 Upgrade Kit Is Necessary
When I first got my Razor MX125, I loved the thrill of riding it, but I quickly realized that the stock components limited its full potential. The upgrade kit was necessary for me because it significantly improved both performance and safety. With better suspension and stronger parts, I felt more confident tackling rougher terrain without worrying about damaging my bike or losing control.
Another reason I needed the upgrade kit was to extend the life of my MX125. The original parts wore out faster than I expected, and replacing them with higher-quality components saved me from frequent repairs. Plus, the kit made maintenance easier, so I could spend more time riding and less time fixing.
Overall, installing the Razor MX125 upgrade kit transformed my riding experience. It made the bike faster, smoother, and more reliable—exactly what I needed to take my rides to the next level.
My Buying Guide on Razor Mx125 Upgrade Kit
When I first decided to upgrade my Razor MX125, I quickly realized there are a few important factors to consider to get the best performance and value from the upgrade kit. Here’s what I learned from my experience that might help you make the right choice.
Understanding What the Razor MX125 Upgrade Kit Includes
Before buying, I made sure to check exactly what parts came with the upgrade kit. Some kits include a motor, chain, sprockets, and even a battery upgrade, while others might only offer a motor and sprockets. Knowing what’s included helps avoid surprises and additional purchases later.
Compatibility with My Razor MX125 Model
I double-checked that the upgrade kit was specifically designed for the Razor MX125. There are similar models like the MX350 or MX500, and their parts aren’t always interchangeable. Using the right kit ensures a perfect fit and smooth installation.
Motor Power and Performance Boost
One of my main goals was to increase speed and torque. I looked for kits that offered a higher wattage motor than the stock 350W motor. Some kits boost the motor up to 500W or more, which made my ride noticeably faster and better for off-road terrain.
Battery Upgrade Options
To complement the motor upgrade, I considered upgrading the battery for longer ride times. Some kits include a higher capacity battery or recommend compatible options. A stronger battery helps maintain performance and extends your fun time.
Ease of Installation
I’m not a professional mechanic, so I appreciated kits that came with clear instructions or even video tutorials. Some upgrades require basic tools and mechanical know-how, while others might need specialized tools or professional help. I made sure the kit matched my skill level.
Durability and Quality of Parts
Since I wanted my Razor MX125 to last, I looked for upgrade kits with durable materials like steel sprockets and high-quality chains. Cheaper parts might save money upfront but can wear out quickly and cause maintenance headaches.
Customer Reviews and Support
I found it helpful to read other buyers’ reviews about the kit’s performance and reliability. Also, choosing a brand or seller with good customer support made me feel more confident in case I ran into any issues during or after installation.
Price vs. Value
Finally, I balanced my budget with the benefits of each kit. The most expensive upgrade isn’t always the best fit for your needs. I aimed for a kit that offered noticeable performance improvements without breaking the bank.
Final Thoughts
Upgrading my Razor MX125 was a rewarding experience that gave my electric dirt bike new life and excitement. By focusing on compatibility, power, battery life, and quality, I found a kit that met my needs and skills. I hope my guide helps you choose the right Razor MX125 upgrade kit for your own adventure!
Author Profile
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I’m Charlie Kirby, the writer behind Immu Metrix. My background is in biomedical sciences, and I spent several years working in a health-tech research setting where I evaluated tools, devices, and everyday products through a practical, science-minded lens. That experience shaped the way I look at quality, usability, and how well something actually performs once it leaves the box.
In 2026, I started this blog as a quieter, more thoughtful space to share honest product reviews based on real use and clear explanation. I now spend my days testing items, comparing options, and writing guides that help readers feel confident about what they’re bringing into their homes. Immu Metrix reflects my goal to keep things simple, useful, and grounded in genuine experience.
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