The Razor MX350 Dirt Rocket is a compact electric dirt bike designed around a simple idea: give younger riders a real dirt-bike-style experience without the size, speed, or weight of a full-size electric dirt bike.
It uses a 24V sealed lead-acid battery, a high-torque chain-driven motor, 12-inch pneumatic tires, and a parent-controlled high/low speed switch. In the default High setting, Razor lists a top speed of 14 mph, while Low mode limits it to 10 mph. Claimed runtime is up to 30 minutes in High mode or 60 minutes in Low mode.
That makes the MX350 quite different from larger models such as the Razor MX500 and MX650. It is smaller, slower, lighter, and easier to manage, but it also has a much lower rider weight limit and less battery capacity.
Read here: Teens electric dirt bikes
- Quick Overview
- Motor & Performance
- Battery & Runtime
- Speed Control for Younger Riders
- Suspension and Ride
- Brakes
- Tires and Wheels
- Size, Weight & Rider Fit
- Design & Features
- Assembly
- What Owners Say About the MX350
- Battery Charging and Maintenance
- Problems to Watch For
- Pros & Cons
- Who Is the Razor MX350 For?
- Razor MX350 vs. MX500
- Razor MX350 vs. MX650
- Frequently Asked Questions
- Check Price on Amazon
- Final Thoughts
Quick Overview
The MX350 has a traditional mini motocross-bike appearance rather than looking like a normal bicycle with an electric motor added.
Its steel frame, knobby pneumatic tires, riser handlebars, folding foot pegs, and rear-wheel drive give it the basic layout riders expect from a small dirt bike.
| Specification | Razor MX350 |
|---|---|
| Motor | High-torque, chain-driven |
| Drive | Rear-wheel drive |
| Battery | 24V sealed lead-acid |
| Low Speed | Up to 10 MPH |
| High Speed | Up to 14 MPH |
| Claimed Runtime | Up to 60 min Low / 30 min High |
| Rider Weight | Up to 140 lb |
| Wheels | 12-inch pneumatic |
| Brake | Hand-operated rear |
| Frame | Steel |
| Product Weight | About 48.3 lb |
| Speed Control | Parent-controlled High/Low |
| Assembly | Some assembly required |
The specifications above come from Razor’s current product information and manual.
Motor & Performance
The MX350 uses a high-torque, chain-driven rear-wheel motor. Razor does not present it as a high-power performance bike. Instead, the focus is on manageable acceleration and a dirt-bike-style riding experience for younger riders.
The factory High setting allows speeds of up to 14 mph, while the Low setting reduces the maximum speed to 10 mph.
That two-level system is one of the more useful parts of the MX350.
A new rider can start in Low mode while learning throttle control, braking, turning, and balance. Once the rider is comfortable, the speed can be raised to the High setting. Razor’s manual specifically describes the switch as a parent-controlled feature and recommends using Low mode while learning.
Real-world speed will not always equal the advertised maximum. Razor notes that factors such as rider weight, inclines, tire pressure, and battery charge can affect speed.
Battery & Runtime
The MX350 uses a 24V sealed lead-acid rechargeable battery system made from two 12V batteries.
Razor currently claims:
- Up to 60 minutes in Low Speed Mode
- Up to 30 minutes in High Speed Mode
These figures are continuous-use estimates rather than a guaranteed riding time for every rider or terrain condition.
Battery performance is one area where owner experiences vary considerably. Some owners report getting substantial riding time, while others mention shorter runtime or batteries that eventually stop holding a charge. Current customer feedback includes examples ranging from roughly 30–60 minutes to much shorter runtimes after battery problems develop.
One recent owner said the bike lasted about an hour after charging, while another reported long riding sessions after following the charging instructions. These are individual experiences, so they should not be treated as a standardized battery test.
Lead-Acid Battery Considerations
The lead-acid battery is an important part of the MX350’s design.
Compared with newer lithium-powered electric dirt bikes, it adds weight and generally makes charging and battery replacement more noticeable parts of ownership. On the other hand, the MX350 is built around a relatively simple electrical system.
Razor also provides replacement-parts and battery-replacement support for the MX350, which is useful for long-term ownership.
Speed Control for Younger Riders
The High/Low speed switch is worth highlighting because it changes how the MX350 can be used.
In Low mode, the bike is limited to 10 mph and Razor lists the minimum age as 8+. In High mode, it can reach 14 mph and Razor lists the minimum age as 13+.
The switch is located under a cover and requires a Phillips screwdriver to change. Razor’s manual says the system is intended to prevent younger riders from immediately accessing the higher speed.
This is more useful than simply having a single fixed top speed because the bike can be introduced at a lower setting.
Age alone should not determine whether a rider is ready. Rider size, maturity, ability to control the bike, and experience all matter.
Suspension and Ride
The MX350 keeps its suspension relatively simple.
It uses a double-crown steel fork at the front and a small dirt-bike-style frame designed around the proportions of a youth motorcycle. The 12-inch pneumatic tires provide some additional cushioning over uneven surfaces.
This is not a full-suspension electric dirt bike like many of the larger models in our reviews.
That distinction matters if the intended riding involves rough trails, jumps, or aggressive off-road riding. The MX350 is better understood as a compact entry-level dirt bike rather than a high-performance trail machine.
Razor’s manual also warns that rough, wet, slippery, or uneven conditions can affect traction and control.
Brakes
The MX350 uses a hand-operated rear brake.
There are no front and rear hydraulic disc brakes like you will find on many larger electric dirt bikes. The simpler rear-brake setup fits the MX350’s smaller size and lower speed.
Before every ride, Razor recommends checking that the brake works properly and that the tires have appropriate inflation and tread. (Razor)
For a young rider, learning smooth braking is just as important as learning throttle control.
Tires and Wheels
The MX350 has 12-inch pneumatic tires with a knobby tread pattern.
The smaller wheels help keep the bike compact while the pneumatic construction provides more compliance than a solid tire. Razor describes the tires as suitable for off-road riding and different types of terrain.
However, “off-road” does not mean every type of trail is appropriate.
The owner’s manual advises against wet or slippery conditions and warns that rough or uneven surfaces can reduce traction and increase the chance of losing control.
Size, Weight & Rider Fit
The MX350 weighs about 48.3 pounds and has a recommended maximum rider weight of 140 pounds.
Its compact dimensions are approximately:
- Length: 43.7 inches
- Width: 28 inches
- Height: 21.7 inches
The smaller frame is a major reason the MX350 can work well for younger riders, but it also limits how long it may remain suitable as a child grows.
Some recent owners have reported that the bike fits smaller children particularly well, while other feedback points out that larger or taller riders can outgrow it.
The 140-pound limit is more important than simply looking at age. Razor also notes that being under the weight limit does not automatically mean a rider is the right size to comfortably control the bike.
Design & Features
The MX350 has a surprisingly recognizable dirt-bike layout for a compact electric model.
Key design features include:
- Steel frame
- Authentic motocross-style geometry
- Adjustable-angle riser handlebars
- Soft rubber grips
- 12-inch spoked wheels
- Pneumatic knobby tires
- Folding metal foot pegs
- Retractable kickstand
- Shatter-resistant plastic fairings
- Twist-grip throttle
- Rear-wheel chain drive
- Rear hand brake
- Parent-controlled High/Low speed switch
Razor also states that the electrical system is certified compliant with UL2272 by ACT Lab LLC, an accredited testing laboratory.
Assembly
The MX350 requires some assembly, but it is not a bike that needs to be built completely from individual components.
Owner experiences suggest that assembly can be relatively straightforward. One recent review described the bike as easy to put together, while other owners have also highlighted simple setup as a positive.
After assembly, it is important to check the handlebars, brake, wheels, tires, chain guard, and other components before the first ride.
Razor’s manual specifically recommends checking the bike’s condition before use and maintaining it according to the manufacturer’s specifications.
What Owners Say About the MX350
The overall owner experience is mixed in the areas where small electric dirt bikes commonly vary: battery performance, charging, size, and long-term durability.
Some owners report that the MX350 is fun, sturdy, easy to assemble, and appropriately sized for younger riders. Others mention that battery life can be shorter than expected or that the battery eventually loses its ability to hold a charge.
Recent feedback also includes owners who describe the bike as a good introduction to dirt-bike riding. At the same time, some parents report that children can outgrow the physical dimensions relatively quickly.
One important point is that customer reports include riders younger than Razor’s stated age guidance. Those individual experiences should not be interpreted as Razor recommending the bike for those ages.
Battery Charging and Maintenance
Because the MX350 uses sealed lead-acid batteries, charging habits matter.
Razor’s documentation says to use the supplied/recommended charger and to inspect the charger and its components for damage. The charger should be operated by an adult.
Before riding, it is also worth checking:
- Tire pressure
- Brake operation
- Chain and chain guard
- Handlebar tightness
- Wheels and axles
- Battery connections
- General frame condition
Keeping the tires properly inflated is particularly important because tire pressure can affect both performance and range.
Problems to Watch For
The MX350 is a relatively simple electric dirt bike, but there are a few ownership considerations worth understanding before buying.
Battery life can vary
The advertised runtime is up to 60 minutes in Low mode and 30 minutes in High mode, but actual results depend on the rider and riding conditions. Customer experiences vary significantly.
Lead-acid batteries are heavy
The 24V lead-acid setup contributes to the bike’s overall weight and is less modern than the lithium battery systems used in many newer electric dirt bikes.
Riders can outgrow it
The 140-lb limit and compact dimensions mean the MX350 has a relatively narrow size window. A rider may still be under the weight limit but find the bike too small for comfortable control.
It is not a high-performance trail bike
The 250W-class high-torque motor, 14 MPH maximum speed, rear brake, and basic suspension are designed around a smaller youth platform.
If you are looking for 40–60 MPH performance, large batteries, hydraulic brakes, and full suspension, you will need to move considerably higher in the electric dirt-bike range.
Pros & Cons
Pros
- Compact dirt-bike design
- Two selectable speed settings
- 10 MPH Low mode for learning
- Up to 14 MPH in High mode
- Up to 60 minutes claimed Low-mode runtime
- Pneumatic knobby tires
- Rear-wheel drive
- Simple twist-grip throttle
- Adjustable handlebars
- Folding metal foot pegs
- 140-lb rider limit
- Replacement-part support is available
Cons
- Lead-acid battery is heavier than lithium alternatives
- High-mode claimed runtime drops to 30 minutes
- Only a rear hand-operated brake
- Smaller riders may eventually outgrow it
- Not designed for high-speed or aggressive trail riding
- Battery performance can vary considerably between owners
Who Is the Razor MX350 For?
The MX350 makes the most sense for a rider who needs a small, relatively low-speed electric dirt bike rather than a full-size machine.
Its adjustable High/Low speed system gives parents a way to start at 10 MPH before moving to the 14 MPH setting when the rider has developed the necessary control skills. Razor lists the Low setting for riders 8+ and the High setting for riders 13+.
It is also a better fit for riders who are comfortably below the 140-lb maximum and whose physical size matches the compact frame.
For a larger teen, the MX500 or another full-size electric dirt bike may provide more room and capacity.
Razor MX350 vs. MX500
The MX350 and MX500 serve different rider sizes.
| Feature | Razor MX350 | Razor MX500 |
|---|---|---|
| Max Speed | 14 MPH | 15 MPH |
| Battery | 24V Lead-Acid | 36V Lead-Acid |
| Max Rider Weight | 140 lb | 175 lb |
| Wheels | 12″ | 16″ front / 14″ rear |
| Brakes | Rear | Front & rear disc |
| Rider Age | 8+ Low / 13+ High | 14+ |
| Size | Compact | Larger |
The MX500 is only slightly faster on paper, but it is a substantially larger machine with a higher rider weight limit and front/rear disc brakes. Razor currently lists the MX500 at 15 MPH and 175 lb, compared with 14 MPH and 140 lb for the MX350.
So the main difference is size and intended rider, not simply top speed.
Razor MX350 vs. MX650
The MX650 is a much larger step up.
It has a 650W motor, 36V battery, 17 MPH maximum speed, 220-lb rider limit, 16/14-inch tires, and front/rear disc brakes. The MX350 is considerably smaller and uses a 24V battery, 12-inch wheels, rear braking, and a 140-lb limit.
For a younger or smaller rider, the MX350’s lower speed and smaller platform can be more relevant than the MX650’s additional performance.
For larger riders, the MX650’s additional size and weight capacity become important.
Frequently Asked Questions
How fast is the Razor MX350?
The MX350 reaches up to 14 MPH in High Speed Mode. Low Speed Mode limits it to 10 MPH.
How long does the Razor MX350 battery last?
Razor claims up to 60 minutes in Low Speed Mode and up to 30 minutes in High Speed Mode. Actual runtime varies with rider weight, terrain, speed, battery condition, and riding style.
What age is the Razor MX350 for?
Razor currently lists the MX350 for ages 8+ in Low Speed Mode and 13+ in High Speed Mode.
What is the weight limit?
The recommended maximum rider weight is 140 pounds (64 kg).
Does the MX350 have a speed limiter?
Yes. It has a parent-controlled High/Low speed switch. Low mode is limited to 10 MPH, while High mode allows up to 14 MPH.
Does the Razor MX350 have hydraulic brakes?
No. It uses a hand-operated rear brake.
What type of battery does it use?
The MX350 uses a 24V sealed lead-acid rechargeable battery system consisting of two 12V batteries.
Is the MX350 good for a tall teenager?
It depends on the rider’s actual size and weight. The 140-lb limit and compact dimensions make rider fit particularly important. A teenager who is approaching the bike’s weight or physical size limits may need a larger model.
Final Thoughts
The Razor MX350 is built around simplicity rather than maximum performance.
Its biggest advantages are the compact dirt-bike design, adjustable speed control, pneumatic tires, rear-wheel drive, and relatively manageable 14 MPH maximum speed. The 10 MPH Low setting also gives younger riders a way to learn the controls before moving to the higher setting.
The main limitations are equally clear. The 140-lb rider limit, small frame, lead-acid battery, rear-only braking, and basic suspension make it a very different machine from the larger electric dirt bikes on the market.
Battery runtime is another area where expectations should be realistic. Razor’s official figures are up to 60 minutes in Low mode and 30 minutes in High mode, while owner experiences vary.
For the right-size rider who wants a straightforward electric introduction to dirt-bike riding, the MX350’s specifications make sense. For a larger teen or anyone looking for substantially more speed, range, braking hardware, or suspension capability, a larger model will be more appropriate.
