The Razor MX650 Dirt Rocket is a full-size electric motocross-style bike designed for older teens and recreational riders. It uses a 650W high-torque, variable-speed chain-driven motor, a 36V sealed lead-acid battery system, front and rear suspension, and dual disc brakes. Razor currently lists the MX650 for ages 16 and up, with a claimed top speed of 17 MPH, up to 40 minutes of continuous use, and a recommended maximum rider weight of 220 lb.
Unlike newer 3,000W–8,000W electric dirt bikes, the MX650 isn’t designed around extreme speed. Its appeal is its relatively simple electric drivetrain, authentic dirt-bike geometry, pneumatic knobby tires, suspension, and established Razor design.
There is also a substantial amount of long-term owner feedback available. Reviews include riders who have used their MX650s for several years, along with reports of battery replacement, charging issues, and bikes that stopped working. That makes battery life and long-term maintenance important parts of this review.
- Razor MX650 Quick Overview
- Razor MX650 Motor & Performance
- Razor MX650 Battery & Runtime
- Razor MX650 Real-World Battery Feedback
- Razor MX650 Charging
- Razor MX650 Suspension
- Razor MX650 Brakes
- Razor MX650 Tires & Wheels
- Razor MX650 Rider Fit
- Razor MX650 Design & Features
- Razor MX650 Owner Review Evidence
- Razor MX650 Assembly
- Razor MX650 Problems to Watch For
- Razor MX650 vs. Razor MX500
- Razor MX650 vs. Razor MX350
- Razor MX650 vs. Modern High-Power Electric Dirt Bikes
- Pros & Cons
- Who Is the Razor MX650 For?
- Frequently Asked Questions
- How fast is the Razor MX650?
- How powerful is the Razor MX650?
- How long does the MX650 battery last?
- What battery does the Razor MX650 use?
- How much weight can the Razor MX650 hold?
- What age is the Razor MX650 for?
- Does the Razor MX650 have suspension?
- Does the Razor MX650 have disc brakes?
- What size tires does the MX650 use?
- Is the Razor MX650 good for adults?
- Is the MX650 good for beginners?
- Does the MX650 use a lithium battery?
- Does the MX650 have a chain drive?
- Is the Razor MX650 good for off-road riding?
- Check Price on Amazon
- Related Electric Dirt Bike Guides
- Final Thoughts
Razor MX650 Quick Overview
The MX650 is part of Razor’s Dirt Rocket lineup and is specifically described as a high-performance electric motocross bike.
Razor’s current specifications include a 650W variable-speed motor, 36V sealed lead-acid battery, 17 MPH maximum speed, and up to 40 minutes of continuous use. It also has front and rear suspension and hand-operated dual disc brakes.
| Specification | Razor MX650 |
|---|---|
| Brand | Razor |
| Model | MX650 Dirt Rocket |
| Product type | Electric motocross / dirt bike |
| Motor | Variable-speed, high-torque, chain-driven |
| Motor power | 650W |
| Drive | Rear-wheel, chain-driven |
| Battery | 36V sealed lead-acid |
| Battery configuration | Three 12V batteries |
| Claimed top speed | Up to 17 MPH |
| Claimed runtime | Up to 40 minutes |
| Recommended age | 16+ |
| Recommended max rider weight | 220 lb |
| Front suspension | Yes |
| Rear suspension | Yes |
| Brakes | Dual disc |
| Front tire | 16-inch pneumatic knobby |
| Rear tire | 14-inch pneumatic knobby |
| Frame | Steel |
| Fork | Double crown |
| Throttle | Twist-grip |
| Handlebar | Adjustable-angle riser |
| Foot pegs | Folding metal |
| Kickstand | Retractable |
| Compliance | UL2272 stated by Razor |
Razor’s current product page confirms the 17 MPH, 40-minute, 220-lb and 16+ specifications, while the official manual identifies the MX650 motor as a 36V/650W unit and the battery system as three 12V batteries.
Razor MX650 Motor & Performance
The MX650 uses a 650W high-torque, variable-speed, chain-driven motor.
The motor drives the rear wheel through a chain rather than using a hub motor. Razor describes the setup as being designed to provide additional power for uphill and off-road riding.
The 650W motor places the MX650 above Razor’s smaller MX350/MX500 models in the Dirt Rocket range, but it is still far less powerful than the newer 3,000W and 4,000W electric dirt bikes covered elsewhere on this site.
How Fast Is the Razor MX650?
Razor lists a maximum speed of up to 17 MPH.
That is considerably slower than performance-oriented electric dirt bikes such as the Windone RM7 or ABKDO EDB002.
The lower speed can also make the MX650 easier to manage for riders who aren’t looking for motorcycle-level speeds.
However, 17 MPH is still fast enough that proper protective equipment and appropriate riding conditions matter.
Variable-Speed Throttle
The MX650 uses a twist-grip variable-speed throttle.
That allows the rider to control acceleration rather than simply switching between a fixed low and high speed.
The official product information identifies the throttle as twist-grip and the motor as variable-speed.
Razor MX650 Battery & Runtime
The MX650 uses a 36V sealed lead-acid rechargeable battery system.
The current Razor specifications identify three 12V batteries, while the official manual identifies the MX650 battery system as 3 × 12V/12Ah with a fuse.
Razor advertises up to 40 minutes of continuous use.
That figure should be viewed as a maximum-use claim rather than a guaranteed riding time.
Actual runtime can vary depending on:
- Rider weight
- Terrain
- Speed
- Riding surface
- Stop-and-go riding
- Battery condition
- Tire pressure
- Temperature
- How aggressively the throttle is used
Lead-Acid Battery vs. Lithium
One of the biggest differences between the MX650 and many newer electric dirt bikes is the battery technology.
The MX650 uses sealed lead-acid batteries, rather than the lithium-ion batteries commonly found in newer models.
Lead-acid batteries are heavier and generally have less energy density than modern lithium systems.
That is important if you’re comparing the MX650 with a newer electric dirt bike advertised with a large 48V or 60V lithium battery.
On the other hand, the MX650’s electrical system is relatively straightforward, and replacement battery parts and support documentation are available through Razor’s product-support ecosystem. Razor’s support center specifically lists MX500/SX500/MX650 documentation and replacement-related resources.
Razor MX650 Real-World Battery Feedback
Long-term customer feedback is mixed.
Some owners report good battery performance, particularly during normal recreational use. Customer feedback includes owners who praised the MX650’s battery life and said the bike was enjoyable for younger riders.
Other owners have reported battery deterioration over time.
For example, one owner reported needing a battery replacement after more than two years of ownership. Another reported that their battery began running low before completing a short daily commute.
A separate long-term review described the original batteries as a weak point but said the bike itself continued working after several years of use.
These reports shouldn’t be interpreted as a guaranteed battery lifespan. They do show that battery condition becomes an important maintenance consideration as the bike ages.
Razor MX650 Charging
The MX650 comes with a battery charger, and Razor’s official specifications identify the battery as rechargeable sealed lead-acid.
Because this is a lead-acid system, charging habits and battery age can have a noticeable effect on runtime.
If you’re buying a used MX650, battery condition should be one of the first things to check.
For a new bike, buyers should also inspect:
- Charger operation
- Charging indicator
- Battery connections
- Fuse
- Charging port
- Battery runtime after a complete charge
A bike that reaches the advertised speed but has significantly degraded battery capacity may need a battery replacement before it can be used for longer rides.
Razor MX650 Suspension
One of the MX650’s major advantages over simpler electric ride-on bikes is its front and rear suspension.
Razor specifically lists front and rear suspension as part of the MX650’s equipment.
The suspension is paired with:
- 16-inch front pneumatic tire
- 14-inch rear pneumatic tire
- Knobby tread
- Double-crown fork
- Dirt-bike-style frame
This combination gives the MX650 a more authentic motocross-bike layout than many small electric bikes.
Double-Crown Front Fork
The MX650 uses a double-crown fork.
The front suspension is designed to absorb bumps while maintaining the bike’s dirt-bike-style geometry.
For recreational trail riding, this is useful because the front tire can encounter uneven surfaces, gravel, small bumps and changes in terrain.
Rear Suspension
The rear suspension completes the MX650’s front-and-rear suspension system.
Razor describes the bike as being designed for off-road conditions, and the suspension is an important part of that design.
Razor MX650 Brakes
The MX650 uses hand-operated dual disc brakes.
Razor lists front and rear disc brakes as standard equipment.
The brakes are controlled through hand levers rather than a bicycle-style coaster brake or simple electronic braking system.
For a bike capable of 17 MPH, having dedicated front and rear disc brakes is an important part of the overall design.
Before the first ride, check:
- Front brake operation
- Rear brake operation
- Brake lever movement
- Disc alignment
- Brake mounting hardware
- Pad condition
Razor MX650 Tires & Wheels
The MX650 uses 16-inch front and 14-inch rear pneumatic knobby tires.
The pneumatic tires are designed for off-road use and provide more compliance than small solid tires.
The knobby tread is particularly suited to:
- Dirt
- Grass
- Gravel
- Packed trails
- Uneven surfaces
Tire pressure still matters. Underinflated or overinflated tires can change handling and affect battery consumption.
Razor MX650 Rider Fit
Razor currently recommends the MX650 for riders 16 years and older and lists a recommended maximum rider weight of 220 lb.
The 16+ recommendation is important because customer reviews sometimes mention younger riders using the bike.
Those individual experiences should not override Razor’s current published age guidance.
Is the MX650 for Adults?
The 220-lb recommended maximum weight gives the MX650 some flexibility for larger teens and lighter adults.
However, the bike’s relatively compact dirt-bike dimensions mean that weight isn’t the only fit consideration.
Adult riders should also consider:
- Height
- Leg length
- Handlebar position
- Riding posture
- Seat position
- Intended terrain
The MX650 is still a compact electric motocross bike rather than a full-size adult motorcycle.
Read here: Best electric dirt bikes for adults 2026
Is the MX650 Good for Older Teens?
The current Razor specification specifically recommends 16+.
For an older teen who wants an electric motocross-style bike without the 40–60 MPH speeds of many newer electric motorcycles, the MX650’s 17 MPH maximum provides a substantially different performance envelope.
Read here: Best electric dirt bike for teens 2026
Razor MX650 Design & Features
The MX650 uses a steel frame with authentic dirt-bike geometry.
Razor describes it as a supercross-inspired electric motocross bike.
Important design features include:
- Steel frame
- Shatter-resistant plastic fairings
- Adjustable-angle riser handlebars
- Soft rubber grips
- Folding metal foot pegs
- Retractable kickstand
- Double-crown fork
- Pneumatic knobby tires
Adjustable Riser Handlebars
The riser-style handlebars have an adjustable angle.
That allows some flexibility in the rider’s position and can be useful when trying to accommodate different rider sizes.
Folding Foot Pegs
The MX650 uses metal folding foot pegs.
These provide a dedicated riding position rather than requiring the rider to use conventional bicycle pedals.
Retractable Kickstand
The included kickstand makes it easier to park the bike without leaning it against another object.
Razor MX650 Owner Review Evidence
The MX650 has a much longer ownership history than many newer electric dirt bikes.
That provides useful evidence, particularly around durability and battery life.
Positive Long-Term Ownership
One owner reported having an MX650 for approximately four years and described it as continuing to run despite substantial use. That owner did note that battery life becomes weaker during off-road riding.
Another customer reported that the bike was easy to assemble and that the battery lasted longer than the advertised 40 minutes for their lighter rider.
Battery Complaints
Battery problems are also present in the review evidence.
One owner reported the battery becoming weak enough that the bike would enter low-battery mode during a short trip. Another reported needing to replace the battery after more than two years.
These reports are important for long-term ownership but do not establish a fixed battery lifespan for every MX650.
Bikes That Stopped Working
There are also customer reports of MX650 units stopping after relatively little use.
One reviewer said their bike stopped working after fewer than five rides despite appearing to charge normally. Another customer reported purchasing two bikes and having both stop working within a year.
These are individual customer reports. They should be considered alongside the many owners who report continued use rather than treated as evidence that every MX650 will fail prematurely.
Razor MX650 Assembly
The MX650 requires some assembly.
Razor’s current product page explicitly identifies some assembly required.
Typical setup should include checking and installing components such as:
- Handlebars
- Front wheel
- Controls
- Foot pegs
- Other hardware
After assembly, inspect all fasteners before riding.
Pay particular attention to:
- Handlebar bolts
- Front wheel hardware
- Brake components
- Foot pegs
- Suspension components
- Chain alignment
A proper pre-ride inspection is especially important on a bike designed for off-road riding.
Razor MX650 Problems to Watch For
Battery Replacement
The most consistent long-term concern in available owner feedback is battery life.
Some owners report several years of use, while others report batteries that lose capacity or require replacement.
The sealed lead-acid battery design is also less energy-dense than modern lithium systems.
Electrical Problems
Some customer reports describe bikes that charged but wouldn’t run or stopped working after a relatively small number of rides.
That doesn’t establish a universal electrical defect, but it is something to consider when buying a used MX650.
Limited Runtime
The advertised runtime is only up to 40 minutes.
That’s reasonable for short recreational rides but much less than the multi-hour riding expectations associated with some larger lithium-powered electric dirt bikes.
Compact Adult Fit
The 220-lb recommended maximum gives the bike some adult usability, but the MX650’s scaled motocross geometry isn’t necessarily ideal for every adult rider.
Razor MX650 vs. Razor MX500
The MX500 is one of the most obvious alternatives because both bikes use Razor’s Dirt Rocket platform.
| Feature | Razor MX650 | Razor MX500 |
|---|---|---|
| Motor | 650W | 500W |
| Max speed | 17 MPH | 15 MPH |
| Battery | 36V lead-acid | 36V lead-acid |
| Claimed runtime | Up to 40 min | Up to 40 min |
| Recommended age | 16+ | 14+ |
| Max rider weight | 220 lb | 175 lb |
| Front tire | 16″ | 16″ |
| Rear tire | 14″ | 14″ |
| Suspension | Front + rear | Front + rear |
| Brakes | Dual disc | Dual disc |
| Motor drive | Chain | Chain |
The MX650 provides the higher motor rating, higher claimed speed, higher recommended rider weight and older age positioning.
The MX500 is smaller in terms of its recommended rider range and is positioned for younger riders. The MX650 is therefore better understood as the larger/older-rider Razor Dirt Rocket rather than simply a slightly faster MX500.
Razor MX650 vs. Razor MX350
The difference becomes much larger when comparing the MX650 with the MX350.
| Feature | Razor MX650 | Razor MX350 |
|---|---|---|
| Motor | 650W | 350W |
| Max speed | 17 MPH | 14 MPH |
| Voltage | 36V | 24V |
| Battery | Lead-acid | Lead-acid |
| Runtime | Up to 40 min | Up to 30 min |
| Max rider weight | 220 lb | 140 lb |
| Front tire | 16″ | Smaller |
| Rear tire | 14″ | Smaller |
| Suspension | Front + rear | Basic dirt-bike suspension |
| Brakes | Dual disc | Rear hand brake |
The MX650 is a substantially more capable machine and is aimed at older/larger riders.
Razor MX650 vs. Modern High-Power Electric Dirt Bikes
The MX650 sits in a very different category from bikes such as the ABKDO EDB002 or Windone RM7 Pro.
A modern performance electric dirt bike can advertise several thousand watts and 40+ MPH speeds, whereas the MX650 is rated at 650W and 17 MPH.
That doesn’t make the MX650 a direct replacement for those bikes.
Instead, the MX650 is better suited to someone specifically looking for:
- Lower maximum speed
- Simpler electric drivetrain
- Razor brand support
- Compact motocross geometry
- Short recreational rides
- Front and rear suspension
- Pneumatic knobby tires
Pros & Cons
Pros
- 650W high-torque motor
- Up to 17 MPH
- Front and rear suspension
- Dual disc brakes
- Authentic dirt-bike geometry
- 16″/14″ pneumatic knobby tires
- 220-lb recommended maximum rider weight
- Adjustable riser handlebars
- Folding metal foot pegs
- Steel frame
- Variable-speed twist throttle
- Established Razor Dirt Rocket platform
- Extensive owner-review history
- UL2272 compliance stated by Razor
Cons
- Lead-acid battery is heavier than modern lithium systems
- Maximum runtime is only up to 40 minutes
- Battery replacement can become an ownership expense
- Some owners report premature battery problems
- Some customer reports describe bikes stopping unexpectedly
- Recommended for ages 16+
- 17 MPH is modest compared with newer high-power electric dirt bikes
- Compact dimensions may not suit every adult rider
- Some assembly is required
Who Is the Razor MX650 For?
The Razor MX650 is primarily suited to older teens and recreational riders who want a real dirt-bike-style electric ride without the high speeds of modern electric motorcycles.
It may make sense for:
- Riders aged 16+
- Older teens
- Lighter adults
- Recreational off-road riders
- Riders who prefer a lower-speed machine
- Buyers who want front and rear suspension
- Riders who want pneumatic knobby tires
- People who prefer Razor’s established Dirt Rocket platform
It is less suitable for someone specifically looking for a 40+ MPH electric dirt bike or long-range lithium-powered trail machine.
Frequently Asked Questions
How fast is the Razor MX650?
The Razor MX650 has a claimed maximum speed of 17 MPH.
How powerful is the Razor MX650?
The MX650 uses a 650W high-torque variable-speed chain-driven motor. The official manual identifies the motor as 36V/650W.
How long does the MX650 battery last?
Razor advertises up to 40 minutes of continuous use. Actual runtime varies with rider weight, terrain, speed and battery condition. (Razor)
What battery does the Razor MX650 use?
The MX650 uses a 36V sealed lead-acid rechargeable battery system consisting of three 12V batteries.
How much weight can the Razor MX650 hold?
Razor currently lists a recommended maximum rider weight of 220 lb.
What age is the Razor MX650 for?
Razor currently recommends the MX650 for ages 16 and up.
Does the Razor MX650 have suspension?
Yes. It has front and rear suspension.
Does the Razor MX650 have disc brakes?
Yes. The bike uses hand-operated dual disc brakes.
What size tires does the MX650 use?
The MX650 has a 16-inch front tire and 14-inch rear tire, both pneumatic and knobby.
Is the Razor MX650 good for adults?
It can accommodate riders within Razor’s 220-lb recommended maximum, but its compact motocross geometry means adult fit should be considered individually.
Is the MX650 good for beginners?
The MX650 is considerably less powerful and slower than many modern electric dirt bikes, but Razor still recommends it for riders 16+. It should be treated as a powered off-road motorcycle-style product rather than a conventional bicycle.
Does the MX650 use a lithium battery?
No. The current MX650 uses a 36V sealed lead-acid battery system.
Does the MX650 have a chain drive?
Yes. The motor is chain-driven and rear-wheel drive.
Is the Razor MX650 good for off-road riding?
Razor specifically markets the MX650 for off-road conditions and equips it with suspension and pneumatic knobby tires.
Final Thoughts
The Razor MX650 occupies a different part of the electric dirt-bike market from the newer high-power machines on ElectricDirtBikes.org.
Its 650W motor, 17 MPH maximum speed, 36V lead-acid battery, front and rear suspension, dual disc brakes, and 220-lb recommended rider limit make it a relatively straightforward electric motocross bike for older riders.
The biggest advantage of the MX650 is its established Dirt Rocket design. It has authentic dirt-bike geometry, pneumatic knobby tires, suspension and a chain-driven motor rather than feeling like a bicycle with an electric motor attached.
The biggest consideration is the lead-acid battery system. Razor claims up to 40 minutes of continuous use, but long-term customer feedback shows that battery performance can decline and replacements may eventually be necessary. Some owners report years of use, while others report premature battery or electrical problems.
For a rider who specifically wants a 17 MPH electric dirt bike with traditional motocross styling and a relatively simple drivetrain, the MX650 remains an interesting option. For someone looking for long range, lithium battery technology or 40+ MPH performance, the newer electric dirt-bike category offers a very different specification set.
