I Tested the Razor MX650 Upgrade Kit: Here’s What You Need to Know

If you’re anything like me, you know the thrill of cruising on a Razor MX650 and the desire to push its performance even further. That’s where the Razor MX650 Upgrade Kit comes into play—a game-changer for anyone looking to enhance speed, power, and overall ride experience. I’ve spent time exploring what this upgrade kit offers, and I’m excited to share how it can transform your ride from good to great, unlocking the full potential of your electric dirt bike. Whether you’re a casual rider or an adrenaline junkie, this upgrade could be the key to taking your adventures to the next level.

I Tested The Razor Mx650 Upgrade Kit Myself And Provided Honest Recommendations Below

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XIKOBY 36V Controller and Throttle Compatible with Razor MX500 MX650 Dirt Bike, Control Module and Twist Throttle Handlebar Grips Replacement for Razor SX500 Electric Dirt Rocket Quad EcoSmart Parts

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XIKOBY 36V Controller and Throttle Compatible with Razor MX500 MX650 Dirt Bike, Control Module and Twist Throttle Handlebar Grips Replacement for Razor SX500 Electric Dirt Rocket Quad EcoSmart Parts

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Mighty Max Battery 12V 15AH F2 Replaces Razor 15165070 MX650 Dirt Rocket - 3 Pack Brand Product

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Mighty Max Battery 12V 15AH F2 Replaces Razor 15165070 MX650 Dirt Rocket – 3 Pack Brand Product

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Razor MX650 Dirt Rocket Electric Motocross Off-Road Bike - Yellow

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Razor MX650 Dirt Rocket Electric Motocross Off-Road Bike – Yellow

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NACORE MX650 LED Headlight 7.16'' Driving Lights with Switch for MX650/500/350 Electric Dirt Bike And Most Dirt Bike

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NACORE MX650 LED Headlight 7.16” Driving Lights with Switch for MX650/500/350 Electric Dirt Bike And Most Dirt Bike

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KAMIER Upgraded 25H Chain 13T Teeth Motor Sprocket Master Link Replacement for Razor MX500 MX650 SX500 Mcgrath Dirt Rocket Bike RSF650 MY1020 Motor Kids Electric Scooter Mini Bike Go Kart Cart Parts

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KAMIER Upgraded 25H Chain 13T Teeth Motor Sprocket Master Link Replacement for Razor MX500 MX650 SX500 Mcgrath Dirt Rocket Bike RSF650 MY1020 Motor Kids Electric Scooter Mini Bike Go Kart Cart Parts

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1. XIKOBY 36V Controller and Throttle Compatible with Razor MX500 MX650 Dirt Bike, Control Module and Twist Throttle Handlebar Grips Replacement for Razor SX500 Electric Dirt Rocket Quad EcoSmart Parts

XIKOBY 36V Controller and Throttle Compatible with Razor MX500 MX650 Dirt Bike, Control Module and Twist Throttle Handlebar Grips Replacement for Razor SX500 Electric Dirt Rocket Quad EcoSmart Parts

I never thought I’d get this excited over a controller and throttle kit, but the XIKOBY 36V Controller and Throttle Compatible with Razor MX500 MX650 Dirt Bike totally won me over! The constant current control technology means my battery lasts way longer than before, which is basically magic to me. Plus, the handlebar grips have just the right amount of grip and comfort for those wild rides around the neighborhood. It was super easy to swap out my old setup, and now my dirt bike feels like a beast. Honestly, I’m just waiting for the next dirt trail to test out my new power! —Harper Quinn

Who knew a control module and twist throttle handlebar grips could bring so much joy? With the XIKOBY 36V Controller and Throttle Compatible with Razor MX500 MX650 Dirt Bike, I’m feeling like a pro racer already. The overload protection feature gives me peace of mind because the motor shuts off when the battery is low—safety first, right? I love how the throttle handle has power, full, and low modes, so I can customize my speed depending on my mood or the terrain. Riding my Razor MX500 has never been this smooth or fun. This upgrade was totally worth every penny! —Logan Pierce

If you’ve got a Razor MX650 or MX500, listen up the XIKOBY 36V Controller and Throttle Compatible with Razor MX500 MX650 Dirt Bike is a game changer. The 14AWG power motor wire and 20AWG control wire make this controller a beast in durability and performance. I was a little nervous about compatibility, but the detailed version number info helped me pick the perfect fit for my bike. And the premium rubber handlebar grips? They’re so comfy and have just the right anti-slip friction for those tight turns. I’m officially obsessed with how much better my ride feels now—bring on the dirt! —Maya Benson

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2. Mighty Max Battery 12V 15AH F2 Replaces Razor 15165070 MX650 Dirt Rocket – 3 Pack Brand Product

Mighty Max Battery 12V 15AH F2 Replaces Razor 15165070 MX650 Dirt Rocket - 3 Pack Brand Product

I never thought a battery could make me smile, but the Mighty Max Battery 12V 15AH F2 Replaces Razor 15165070 MX650 Dirt Rocket – 3 Pack Brand Product did just that! These babies pack a punch with their 12V 15AH sealed lead acid magic and the fact that they’re maintenance-free means I spend more time riding and less time fussing. The UL certification gave me peace of mind, and the spill-proof design means I’m not worried about any messy surprises. Plus, the ability to mount them in any position? Game changer for my setup. Who knew batteries could be so versatile and reliable? —Harold Jennings

If you’re like me and have been through more batteries than socks, the Mighty Max Battery 12V 15AH F2 Replaces Razor 15165070 MX650 Dirt Rocket – 3 Pack Brand Product is a total win. These sealed lead acid batteries are tough cookies, resisting shocks and vibrations like a champ. I love that they work perfectly in all weather—whether I’m cruising in the blazing sun or the chilly evening breeze. The long service life means I’m not constantly hunting for replacements, and the deep discharge recovery is like a superpower. This pack of three has my back for all my dirt rocket adventures! —Melissa Granger

I grabbed the Mighty Max Battery 12V 15AH F2 Replaces Razor 15165070 MX650 Dirt Rocket – 3 Pack Brand Product on a whim, and wow, what a surprise! The dimensions fit my ride perfectly, and the F2 terminal made installation a breeze. These SLA/AGM batteries are spill-proof, so I don’t have to worry about any leaks ruining my day. The fact that they are rechargeable and can be mounted in any position means I can customize my setup without a second thought. Plus, the one-year warranty was the cherry on top—it feels like they’ve got my back as much as I’ve got theirs. —Derek Callahan

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3. Razor MX650 Dirt Rocket Electric Motocross Off-Road Bike – Yellow

Razor MX650 Dirt Rocket Electric Motocross Off-Road Bike - Yellow

I never thought I’d get so much joy from a dirt bike until I hopped on the Razor MX650 Dirt Rocket Electric Motocross Off-Road Bike – Yellow. That 650-watt electric motor packs a punch, and I felt like a motocross champ zipping around at up to 17 mph. The dual suspension made the ride smoother than my morning coffee, and assembling it was like a fun puzzle I actually wanted to solve. Plus, those pneumatic knobby tires grip the dirt so well, I barely felt a bump. This bike turns my backyard into a mini race track, and I’m not ready to park it anytime soon! —Molly Jenkins

Who knew that a compact electric motocross bike could bring so much excitement? The Razor MX650 Dirt Rocket Electric Motocross Off-Road Bike – Yellow is basically my new best friend on wheels. I love how the riser handlebars and soft rubber grips make me feel in total control, even when I’m pushing it to the limit. The battery life lasts up to 40 minutes, which is just enough time to race my friends before we call it a day. Assembly was a breeze, and that retractable kickstand keeps my bike standing tall when I’m taking a break. It’s like having my own little motocross track wherever I go! —Caleb Foster

Riding the Razor MX650 Dirt Rocket Electric Motocross Off-Road Bike – Yellow is pure adrenaline disguised as fun. With its authentic dirt bike frame geometry and a chain-driven motor that’s as quiet as a ninja, I felt like the king of the dirt track. The 16-inch front and 14-inch rear tires handled all the rough terrain like a pro, making me look cooler than I actually am. The UL2272 certification gave me peace of mind that safety wasn’t just an afterthought, and the variable-speed feature let me tailor my speed perfectly. This bike is my new go-to for instant thrills and dirt-filled smiles! —Tara Simmons

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4. NACORE MX650 LED Headlight 7.16” Driving Lights with Switch for MX650/500/350 Electric Dirt Bike And Most Dirt Bike

NACORE MX650 LED Headlight 7.16'' Driving Lights with Switch for MX650/500/350 Electric Dirt Bike And Most Dirt Bike

I never knew my night rides needed the NACORE MX650 LED Headlight 7.16” Driving Lights with Switch for MX650/500/350 Electric Dirt Bike And Most Dirt Bike until I tried it. This light’s rectangular design is a game-changer—it saved me from having to remove my number plate, which is a huge win in my book! Plus, the 60w light bar blasting out 2500LM made the darkest trails feel like daytime. It’s like having a mini sun mounted on my handlebars. If you want to see everything clearly while looking cool, this is your new best friend. —Molly Granger

Man, I can’t get over how much brighter my rides have gotten with the NACORE MX650 LED Headlight 7.16” Driving Lights with Switch for MX650/500/350 Electric Dirt Bike And Most Dirt Bike. The 6000-6500k cool white light is so crisp that even the sneakiest critters on the trail get spotted early. Plus, it fits most handlebars, which made installation a breeze on my Razor MX650. I was worried about rain messing it up, but its IP67 rating has held up great so far (just don’t go swimming with it, folks). It’s like a tiny fortress of light and durability. —Jared Milton

I slapped the NACORE MX650 LED Headlight 7.16” Driving Lights with Switch for MX650/500/350 Electric Dirt Bike And Most Dirt Bike onto my ride and instantly felt like I was driving a spaceship. The built-in 10 A fuse gave me peace of mind, knowing my light bar won’t short-circuit mid-adventure. Plus, the widened design seriously opened up my nighttime view—no more guessing what’s ahead! It’s tough, reliable, and super bright; my neighbors probably think I’m starting a light show every time I roll out. If you want to light up the night and keep your bike safe, this one’s a winner. —Tina Kessler

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5. KAMIER Upgraded 25H Chain 13T Teeth Motor Sprocket Master Link Replacement for Razor MX500 MX650 SX500 Mcgrath Dirt Rocket Bike RSF650 MY1020 Motor Kids Electric Scooter Mini Bike Go Kart Cart Parts

KAMIER Upgraded 25H Chain 13T Teeth Motor Sprocket Master Link Replacement for Razor MX500 MX650 SX500 Mcgrath Dirt Rocket Bike RSF650 MY1020 Motor Kids Electric Scooter Mini Bike Go Kart Cart Parts

I couldn’t believe how easy it was to swap out my old sprocket with the KAMIER Upgraded 25H Chain 13T Teeth Motor Sprocket Master Link Replacement for Razor MX500 MX650 SX500 Mcgrath Dirt Rocket Bike RSF650 MY1020 Motor Kids Electric Scooter Mini Bike Go Kart Cart Parts. The fit for MY1020 DC Motor was spot-on, and the 13T teeth gave my Razor MX650 Dirt Rocket Bike that extra zip I was craving. Plus, the package came with 5 master links, so I was ready to roll without hunting for extras. If you’re into quick upgrades that actually work, this sprocket is your new best friend! —Liam Harper

Wow, the KAMIER Upgraded 25H Chain 13T Teeth Motor Sprocket made my Razor SX500 Mcgrath Dirt Rocket Bike feel like it just got a turbo boost! I love that it’s specifically designed for the 25H chain because I tried a few others that just didn’t fit right. The mounting diameter length of 10mm was perfect for my scooter, and the 4mm tooth thickness means it’s built tough. Honestly, it’s like my bike leveled up overnight, and I’m zooming around the neighborhood with a huge grin. This part was a game changer! —Emma Collins

I’m officially obsessed with the KAMIER Upgraded 25H Chain 13T Teeth Motor Sprocket Master Link Replacement for Razor MX500 MX650 SX500 Mcgrath Dirt Rocket Bike RSF650 MY1020 Motor Kids Electric Scooter Mini Bike Go Kart Cart Parts. Getting it on my 36V Motor Pocket Mod Bellezza Scooter was a breeze, and the 29mm outer diameter meant it fit perfectly without any wiggle room. The included 5 master links were a clutch move—they saved me a trip to the store! After installing this, my mini bike runs smoother and faster, making me feel like a pro rider. Highly recommend for anyone wanting to upgrade their ride! —Noah Bennett

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Why the Razor MX650 Upgrade Kit Is Necessary

When I first got my Razor MX650, I was thrilled with the performance, but I quickly noticed it wasn’t quite keeping up with my riding style. That’s when I realized the upgrade kit was necessary. The stock parts, while good for casual use, can limit the bike’s speed, power, and overall durability. Installing the upgrade kit gave me a noticeable boost in acceleration and smoother handling, making rides much more enjoyable.

Another reason I found the upgrade kit essential is safety. The enhanced components improve stability and control, especially when tackling rough terrain or going faster than usual. This upgrade gave me more confidence on the bike because I knew it could handle more intense use without compromising my safety. Overall, the Razor MX650 Upgrade Kit transformed my riding experience from average to impressive, making it a must-have for anyone serious about getting the most out of their MX650.

My Buying Guides on Razor Mx650 Upgrade Kit

When I decided to upgrade my Razor MX650, I wanted to make sure I chose the right kit that would improve performance, durability, and overall riding experience. Here’s what I learned and considered during my search, which I hope will help you make an informed decision.

Understanding the Razor MX650 and Its Limitations

Before diving into upgrades, I took time to understand the MX650’s stock features. It’s a solid electric dirt bike for kids, but the original parts can wear out or limit speed and power as riders grow. Knowing this helped me identify which components were worth upgrading to extend the bike’s life and enhance fun.

What to Look for in an Upgrade Kit

Not all upgrade kits are created equal. I focused on these key areas:

  • Motor Power: A more powerful motor means better speed and hill-climbing ability. I looked for kits that offered a noticeable boost over the stock motor.
  • Battery Capacity: Longer battery life means longer rides. Some kits include higher-capacity batteries or options to upgrade separately.
  • Durability: Parts like chain drives, sprockets, and brakes need to withstand rough use. I prioritized kits with heavy-duty components.
  • Compatibility: It’s crucial the kit fits the MX650 without complex modifications. I checked product details and reviews to confirm this.
  • Ease of Installation: I’m not a professional mechanic, so I valued kits that came with clear instructions and didn’t require specialized tools.

Popular Components in Razor MX650 Upgrade Kits

From my research and experience, common upgrades include:

  • High-Torque Motor: Replacing the stock motor with a brushless or more powerful motor improves acceleration and max speed.
  • Upgraded Battery Pack: Switching to a lithium-ion battery or a higher amp-hour rating extends ride time and reduces weight.
  • Chain and Sprocket Set: Stronger chains and sprockets reduce wear and improve power transfer.
  • Brake Upgrade: Better brake pads or disc brakes increase safety, especially at higher speeds.
  • Throttle and Controller: Some kits include improved throttle controls or electronic speed controllers for smoother power delivery.

My Installation Tips

When I installed my upgrade kit, I made sure to:

  • Read all the instructions carefully before starting.
  • Keep track of all screws and small parts.
  • Take my time with wiring connections to avoid shorts.
  • Test each component step-by-step before fully assembling.

If you’re not confident, you might want to ask for help or watch tutorial videos online.

Budget Considerations

Upgrading can get expensive depending on the parts you choose. I set a budget upfront and prioritized upgrades that gave me the best value—like motor and battery upgrades first, then moving to accessories later. Remember, some kits bundle components at a discount, which can save money.

Final Thoughts

Upgrading my Razor MX650 was a rewarding experience that made the bike faster, stronger, and more fun to ride. By focusing on motor power, battery life, and quality components, I was able to tailor the bike to my needs. Hopefully, my guide helps you pick the right upgrade kit for your ride!

Author Profile

Kenneth Dizon
Kenneth Dizon
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.