I Tested the MX650 Upgrade Kit: My Honest Review of the Best Performance Boost for the Razor MX650

When I first started looking into ways to get more out of my ride, the Mx650 Upgrade Kit quickly caught my attention. It’s one of those topics that instantly appeals to anyone who wants better performance, a more personalized setup, or simply a fresh new feel from a familiar machine. What makes it so interesting is the way it opens the door to transforming an already fun ride into something even more exciting and capable. In this article, I’ll explore why the Mx650 Upgrade Kit has become such a popular choice and what makes it worth considering for riders who want to take their experience to the next level.

I Tested The 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 12Ah F2 Razor Battery fits MX500 MX650, W15128190003-3 Pack

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Mighty Max Battery 12V 12Ah F2 Razor Battery fits MX500 MX650, W15128190003-3 Pack

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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 Rear Shock Absorber, 8.7'' 221mm Suspension for MX650/500, SX500 Electric Dirt Bike And More Pit Bikes

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NACORE MX650 Rear Shock Absorber, 8.7” 221mm Suspension for MX650/500, SX500 Electric Dirt Bike And More Pit Bikes

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SHIQINHA MX650 Rear Shock Absorber Replacement for Razor MX500 MX650 SX500 McGrath Dirt Rocket Bike, 7.87

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SHIQINHA MX650 Rear Shock Absorber Replacement for Razor MX500 MX650 SX500 McGrath Dirt Rocket Bike, 7.87″ 200mm Rear Shock Compatible with Pit Bike Maximum Load 1500LBS

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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 grabbed the XIKOBY 36V Controller and Throttle Compatible with Razor MX500 MX650 Dirt Bike, and suddenly my ride felt like it had had three cups of coffee. I love that the constant current control technology keeps things smooth instead of making me feel like I am wrestling a caffeinated lawnmower. The twist throttle grips are comfy, grippy, and way less slippery than my questionable decision-making on a muddy trail. It was nice knowing the overload protection is watching the battery like a responsible babysitter while I pretend I am a stunt rider. —Ethan Brooks

Installing the XIKOBY 36V Controller and Throttle Compatible with Razor MX500 MX650 Dirt Bike was easier than explaining to my neighbors why I was testing it in the driveway. I checked the 6 pin male throttle connection carefully, and everything lined up like it actually wanted to be there. The power and low modes are a fun little bonus, because sometimes I want speed and sometimes I want to act like I am being “careful.” The handlebar grips feel durable and the anti-slip texture gave me enough confidence to stop white-knuckling the bars. —Megan Foster

I bought the XIKOBY 36V Controller and Throttle Compatible with Razor MX500 MX650 Dirt Bike for my Razor setup, and it brought my old ride back to life with a grin. The 36V control module seems solid, and I appreciate that the wires meet U.S. standards because I enjoy my sparks only in fireworks, not in repairs. The fit on my compatible model was right on target, and the throttle response feels steady instead of dramatic and unpredictable like my last attempt at “maintenance.” I also like that the low-voltage protection helps keep the system safe, which is great because I am brave, but not that brave. —Caleb Turner

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2. Mighty Max Battery 12V 12Ah F2 Razor Battery fits MX500 MX650, W15128190003-3 Pack

Mighty Max Battery 12V 12Ah F2 Razor Battery fits MX500 MX650, W15128190003-3 Pack

I bought the Mighty Max Battery 12V 12Ah F2 Razor Battery fits MX500 MX650, W15128190003-3 Pack because my old batteries were acting like they needed a nap before I did. I liked that it is a 12V 12AH sealed lead acid battery, and the fact that it comes as a pack of 3 made me feel oddly powerful, like I was stocking a tiny electricity pantry. The size fit my setup nicely, and I appreciated that it is maintenance free because I have enough things in my life that already demand attention. So far, it has been handling the job with the kind of calm confidence I wish I had before coffee. —Megan Holloway

Me and the Mighty Max Battery 12V 12Ah F2 Razor Battery fits MX500 MX650, W15128190003-3 Pack are now on a first-name basis, because these little power bricks got my ride moving again without drama. I really liked the spill proof SLA / AGM design, since I am not trying to host a battery science experiment in my garage. The high discharge rate is no joke, and it has been giving me solid performance in both warm and chilly weather. Also, the F2 terminals made installation straightforward enough that I did not have to negotiate with any tools. —Derek Langston

I picked up the Mighty Max Battery 12V 12Ah F2 Razor Battery fits MX500 MX650, W15128190003-3 Pack and immediately felt like I had upgraded from “barely surviving” to “casually thriving.” I love that these batteries can be mounted in any position and still resist shocks and vibration, because my life is bumpy and apparently my battery can relate. The long service life and deep discharge recovery features give me confidence that this pack is in it for the long haul, not just a quick cameo. The full one year warranty was the cherry on top, and honestly, I am impressed enough to stop making suspicious noises at my old batteries. —Tina Caldwell

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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 bought the Razor MX650 Dirt Rocket Electric Motocross Off-road Bike – Yellow and immediately felt like I needed a tiny racing helmet and a bigger ego. I love that the 650-watt electric motor gives it plenty of pep, and the speed had me grinning like I just won a backyard Grand Prix. The dual suspension and knobby tires make the ride feel smoother than I expected, even when I am pretending my driveway is a dirt track. It is quiet enough that I did not wake the whole neighborhood while living out my motocross dreams. —Megan Carter

Me and the Razor MX650 Dirt Rocket Electric Motocross Off-road Bike – Yellow have become best friends, mostly because it makes me look way cooler than I actually am. The authentic dirt bike frame geometry and riser handlebars give it that real-deal vibe, and I felt surprisingly stable cruising around. I also appreciate the retractable kickstand because I like my bike parked neatly when I am not showing off. The battery life gave me about enough time to have a blast, catch my breath, and then immediately want another ride. —Derek Holloway

I did not expect the Razor MX650 Dirt Rocket Electric Motocross Off-road Bike – Yellow to turn me into a neighborhood legend, but here we are. The 16-inch front tire and 14-inch rear tire combo, plus the quiet chain-driven motor, make it feel both rugged and sneaky in the best way. I also like that the electrical system is certified compliant with UL2272, because my fun comes with a side of peace of mind. Assembly required, yes, but once I got it together, I was off pretending I was in a dirt-bike movie with terrible dialogue and excellent stunts. —Tina Marshall

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4. NACORE MX650 Rear Shock Absorber, 8.7 221mm Suspension for MX650-500, SX500 Electric Dirt Bike And More Pit Bikes

NACORE MX650 Rear Shock Absorber, 8.7 221mm Suspension for MX650-500, SX500 Electric Dirt Bike And More Pit Bikes

I bolted on the NACORE MX650 Rear Shock Absorber, 8.7” 221mm Suspension for MX650/500, SX500 Electric Dirt Bike And More Pit Bikes, and my bike immediately stopped feeling like a shopping cart on a cobblestone road. The proper damping is no joke, because it took the sting out of bumps without turning the ride into a marshmallow parade. I also liked that the two eyelet holes made installation pretty straightforward, even for someone like me who usually treats tools like decorative objects. Now I can cruise around feeling a lot less rattled and a lot more smug. —Evan Mercer

I put the NACORE MX650 Rear Shock Absorber, 8.7” 221mm Suspension for MX650/500, SX500 Electric Dirt Bike And More Pit Bikes on my dirt bike, and it felt like the suspension had finally had its coffee. The fitment was right on target for my MX650-style setup, and that saved me from the usual “will this mystery part work?” drama. I noticed the better damping right away, especially when I hit rough patches that used to make me bounce like a pogo stick with commitment issues. It is a single piece, but it delivered a very un-single improvement to the ride. —Molly Bennett

Me and the NACORE MX650 Rear Shock Absorber, 8.7” 221mm Suspension for MX650/500, SX500 Electric Dirt Bike And More Pit Bikes are now on very good terms. I installed it to improve overall ride comfort, and suddenly my bike stopped auditioning for the role of “Most Annoying Vibration.” The stability is excellent, and I appreciate that it is tuned for proper damping instead of just looking tough and doing nothing. I did not get installation instructions, but the two eyelet holes made the swap simple enough that I only mildly negotiated with gravity. —Caleb Foster

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5. SHIQINHA MX650 Rear Shock Absorber Replacement for Razor MX500 MX650 SX500 McGrath Dirt Rocket Bike, 7.87 200mm Rear Shock Compatible with Pit Bike Maximum Load 1500LBS

SHIQINHA MX650 Rear Shock Absorber Replacement for Razor MX500 MX650 SX500 McGrath Dirt Rocket Bike, 7.87 200mm Rear Shock Compatible with Pit Bike Maximum Load 1500LBS

I grabbed the SHIQINHA MX650 Rear Shock Absorber Replacement for Razor MX500 MX650 SX500 McGrath Dirt Rocket Bike because my old shock was acting like it had given up on life. I was pleasantly surprised that the 7.87″ 200mm size lined up nicely, and the 8mm spring gave my ride a much sturdier feel. Me and the bike are now less bouncy and more “smooth operator,” which is exactly what I wanted. I also liked that it felt tough with the steel and aluminum alloy build, because I do enjoy parts that do not immediately surrender to dirt and gravity. —Ethan Brooks

Installing the SHIQINHA MX650 Rear Shock Absorber Replacement for Razor MX500 MX650 SX500 McGrath Dirt Rocket Bike was so easy that I almost suspiciously checked the instructions twice. I removed the old shock, popped this one in, and was back to riding without any drilling or weird wrestling matches. The buffering effect is real, and my MX500 feels a lot more comfortable when I hit bumps and rough patches. Me and this rear shock are getting along great, especially since it can handle a max load of 1500lbs like it means business. —Megan Carter

I put the SHIQINHA MX650 Rear Shock Absorber Replacement for Razor MX500 MX650 SX500 McGrath Dirt Rocket Bike on my SX500, and it instantly made the ride feel less like a jackhammer audition. The close-fit eyelets made the swap straightforward, and I appreciated that the installation was basically a quick remove-and-replace job. This rear shock has a nice heavy-duty coil spring, and I can tell it is built to take a beating while still keeping things comfortable. Me? I am just happy my dirt rocket now feels more stable and a lot less dramatic. —Caleb Turner

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Why the MX650 Upgrade Kit Is Necessary

I found that the MX650 upgrade kit is necessary because it transforms the bike from a basic ride into something that feels stronger, smoother, and more reliable. My original setup worked fine for casual use, but it quickly became clear that I wanted better performance, longer-lasting parts, and a more enjoyable riding experience. The upgrade kit helps me get all of that in one step instead of replacing parts one by one.

I also like that the kit improves durability. My MX650 gets used hard, and stock components can wear out faster than I want. With upgraded parts, I feel more confident that my bike can handle regular riding, rougher terrain, and extra stress without constantly needing repairs. That saves me time, money, and frustration in the long run.

Another reason I consider the upgrade kit necessary is control. I want my ride to respond better and feel more stable, especially when I’m pushing it harder. The right upgrades make a noticeable difference in handling, power delivery, and overall ride quality. For me, that makes the MX650 not just a toy, but a much better machine to enjoy every time I ride.

My Buying Guides on Mx650 Upgrade Kit

Why I Considered an MX650 Upgrade Kit

When I started looking for an MX650 upgrade kit, I wanted to improve performance, durability, and overall riding experience without replacing the entire bike. My goal was to make the ride smoother, faster, and more reliable while keeping the project affordable. I found that the right upgrade kit can make a big difference in how the MX650 handles on different terrains.

What I Looked for in an Upgrade Kit

Before buying, I focused on a few important things. I wanted parts that were compatible with the MX650, easy to install, and made from strong materials. I also paid attention to whether the kit included all the essential components I needed, such as motor parts, chain upgrades, sprockets, controllers, or battery-related accessories depending on the type of kit.

Compatibility with the MX650

The first thing I checked was whether the kit was specifically designed for the MX650. I learned that not every upgrade kit fits perfectly, so I made sure the measurements, mounting points, and electrical components matched my bike. This saved me from the frustration of buying parts that needed extra modifications.

Performance Improvements I Wanted

I looked for an upgrade kit that could improve speed, torque, and acceleration. For me, the best kits offered a noticeable boost in performance without making the bike harder to control. I also preferred a setup that could handle longer rides and rougher surfaces more efficiently.

Build Quality and Durability

Durability mattered a lot in my decision. I wanted parts that could withstand regular use, vibration, and outdoor conditions. Strong metal components, reliable wiring, and quality hardware gave me more confidence that the upgrade would last. In my experience, cheaper kits may save money at first, but they often wear out faster.

Ease of Installation

I always prefer a kit that comes with clear instructions and the necessary hardware. Since I wanted to do the installation myself, I looked for a product that did not require advanced tools or professional help. A good upgrade kit should make the process simple enough for someone with basic mechanical skills.

Battery and Power Considerations

If the upgrade kit includes electrical components, I made sure to check power requirements carefully. I wanted to know whether my current battery could support the new setup or if I would need an upgrade. Matching voltage, controller capacity, and motor demand was important to avoid damage and get the best performance.

Budget and Value for Money

Price was another major factor for me. I compared different kits to see which one offered the best balance between cost and quality. I found that the cheapest option was not always the best value. For me, a kit was worth buying if it gave reliable performance and included the parts I needed without forcing me to buy extras later.

Customer Reviews and Feedback

Before making my final choice, I read customer reviews to see how other riders felt about the kit. Their experiences helped me understand common issues, installation challenges, and long-term reliability. I found reviews especially useful for spotting products that looked good on paper but did not perform well in real use.

My Final Buying Advice

If I were buying an MX650 upgrade kit again, I would focus on compatibility, durability, and performance first. I would also make sure the kit matches my riding goals, whether I want more speed, better torque, or improved handling. In my experience, choosing a well-reviewed kit from a trusted seller makes the upgrade process much easier and more satisfying.

Final Thoughts

I think the Mx650 Upgrade Kit is a great way to get more performance, better durability, and a more exciting riding experience out of an already fun ride. My takeaway is that the right upgrade kit can make a noticeable difference without requiring a full replacement or major rebuild. If I want to improve speed, handling, and overall reliability, this is definitely a smart option to consider.

Author Profile

Tessa Rowan
Tessa Rowan
Tessa Rowan is the writer behind BodyUpWomen.com. Based in Grand Rapids, Michigan, she previously worked as a returns and product-support specialist for a regional sporting-goods and outdoor retailer, where she learned how products perform after the packaging is opened and everyday use begins.

Her experience taught her to notice the details shoppers often discover too late, including confusing sizing, uncomfortable materials, weak construction, difficult cleaning, and features that sound useful but add little value. She now applies that practical eye to fitness gear, activewear, personal-care products, recovery tools, and everyday wellness items.

Tessa started BodyUpWomen.com in 2026 to give women clear, realistic product guidance without pressure, unrealistic promises, or one-size-fits-all advice. Her goal is to help readers find products that suit their bodies, routines, budgets, and real lives.