No longer available: This model is no longer available on Amazon. For similar in-stock ride-ons, see the best kids’ ride-on motorbikes.
- Battery
- 24V (two12v), Ah not listed
- Motors
- 1 Motors @ 250W Each
- Speed
- 14.0 MPH
- Seatbelts
- No
- Parent Remote
- No
- Headlights
- No
- Horn
- No
- Music Option
- No
- Max Weight
- 140 LBS
- Riders
- 1
- Age
- 8+ Years Old
- Run Time
- 30 Minutes
| Razor | |
|---|---|
| Photo |  |
| Product | Dirt Rocket SX350 | Electric Dirt Bike Motorcycle for Kids... |
| Battery | 24V (two12v), Ah not listed |
| Motors | 1 Motors @ 250W Each |
| Speed | 14.0 MPH |
| Seatbelts | No |
| Parent Remote | No |
| Headlights | No |
| Horn | No |
| Music Option | No |
| Max Weight | 140 LBS |
| Riders | 1 |
| Age | 8+ Years Old |
| Run Time | 30 Minutes |
| Buy |
The Razor SX350 Dirt Rocket McGrath offers young riders an authentic motocross experience with its 250-watt motor reaching speeds up to 14 mph (10 mph on the low setting). We’re impressed by its steel frame with authentic dirt-bike geometry and its pneumatic knobby tires that provide excellent traction.
Parents will appreciate the safety features like the hand-operated rear brake and deliberate power activation. With up to 30 minutes of continuous ride time on high speed (up to 60 on low), it’s a solid choice for budding motocross enthusiasts. Let’s explore what makes this mini dirt bike stand out.
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Razor SX350 Dirt Rocket McGrath Electric Motocross
The Razor SX350 Dirt Rocket McGrath delivers authentic motocross excitement for young riders while maintaining safety as a priority. Inspired by supercross legend Jeremy McGrath, this scaled-down electric bike offers speeds up to 14 mph with 30 minutes of continuous use.
We’re impressed by the authentic MX frame geometry and 12″ pneumatic knobby tires that tackle both pavement and grass with ease. The adjustable handlebars and hand-operated rear brake give kids real riding experience while staying manageable.
Razor rates it for ages 8 and up on the low-speed setting (up to 10 mph) and 13 and up on the default high setting. At 48.3 pounds, it’s substantial enough to feel authentic without overwhelming younger riders.
Best For: Riders 8 and up (13 and up on high speed) who want an authentic motocross experience with manageable speed and safety features, particularly beginners learning to ride electric motorcycles.
Pros:
- Authentic motocross design with MX frame geometry and pneumatic knobby tires that perform well on various terrains
- Easy assembly with adjustable handlebars to accommodate growing riders up to 140 pounds
- Durable construction with good battery life that provides up to an hour of riding on low speed (30 minutes on high)
Cons:
- Long charging time (up to 12 hours) for up to 30 minutes of continuous use on high speed
- Hand brake may be difficult to operate for riders with smaller hands
- Taller teens may find the frame small
Design and Build Quality
Looking beyond the basic specifications, we need to examine the Razor SX350’s physical construction more closely. The frame consists of powder-coated steel that’s both lightweight and durable enough to withstand the inevitable spills that come with off-road riding.
A powder-coated steel frame delivers the perfect balance of lightweight maneuverability and rugged durability for off-road adventures.
We’re impressed by the authenticity of the design, which mimics professional motocross bikes with genuine dirt bike geometry.
The hand-operated rear brake feels responsive and solid, giving riders the confidence to push boundaries safely. The twist-grip throttle offers intuitive control, and the 12-inch air-filled tires take the edge off small bumps, since the SX350 has no suspension. The knobby pneumatic tires provide excellent traction across various terrains.
What truly sets the SX350 apart is how it balances rugged functionality with sleek aesthetics. Razor didn’t compromise on build quality while creating a machine that empowers young riders to experience real freedom.
Performance and Features
Powering up the SX350 Dirt Rocket reveals its impressive performance credentials immediately. The 250-watt electric motor delivers a thrilling top speed of 14 mph (10 mph with the parent-set low speed), striking an ideal balance between exhilaration and safety for young riders.
The twist-grip throttle is on/off rather than gradual (Razor’s parts list calls it a single-speed throttle), so the parent-set high/low switch is what sets the top speed.
The dirt bike’s 12-inch pneumatic knobby tires add grip, but there’s no suspension, and Razor’s manual says to ride on flat, dry ground without loose sand, leaves, rocks or gravel. It runs up to 30 minutes on high speed and up to 60 minutes on low before needing a recharge.
The authentic dirt bike frame geometry gives riders a genuine motocross feel, encouraging proper riding position and technique development. For young thrill-seekers ready to escape conventional play equipment, the SX350’s performance capabilities unveil new dimensions of off-road freedom.
Safety and Security Measures
While delivering impressive speed and performance, Razor hasn’t compromised on safety with the SX350 Dirt Rocket. The bike has a hand-operated rear brake, and squeezing it with the throttle on cuts power to the motor.
We’re impressed by the retractable kickstand that prevents unexpected falls when parked, and the rubber grips that guarantee young riders maintain control in varied conditions. The power switch requires deliberate activation, preventing accidental starts.
The bike’s lower center of gravity enhances stability while maintaining the thrill factor riders crave. Additionally, Razor includes recommended safety gear guidelines with purchase, though we always suggest helmets, knee pads, and elbow protection for maximum security.
For parents seeking the balance between adventure and protection, the SX350’s thoughtful safety features deliver peace of mind without stifling freedom.
User Experience and Feedback
SX350 owners give overwhelmingly positive feedback regarding the dirt bike’s performance and durability.
Parents consistently praise the bike’s balance of speed and safety, while young riders rave about the authentic motocross feel.
Many users report the SX350 exceeding their expectations, with several mentioning their bikes still running strong after 2+ years of regular use.
The high/low speed switch lets parents start beginners at 10 mph.
Not all feedback is perfect—some taller riders find the frame slightly small, and a few users wish for longer battery life.
However, the overwhelming consensus points to a liberating riding experience that delivers the thrill kids crave while providing the reliability parents demand.
Frequently Asked Questions
Is the Razor SX350 Suitable for Riding in Rain or Snow?
No, we don’t recommend riding the SX350 in rain or snow. It’s an electric bike that’s not weatherproofed, so moisture can damage its components and create dangerous riding conditions.
How Long Does the Battery Last Before Needing Replacement?
We’ve found that the battery typically lasts 1-2 years with regular use before you’ll need to replace it. Don’t let corporations trap you with planned obsolescence—maintain it properly for maximum freedom.
Are Replacement Parts Easily Available for the SX350?
Yes, we’ve found replacement parts for the SX350 are widely available through Razor’s website and third-party retailers. You’re never locked into proprietary systems with this liberating ride!
Can Adults Ride the Razor SX350 Dirt Rocket?
We don’t recommend adults ride the SX350. It’s designed for kids, with a 140-pound weight limit. You’ll likely feel cramped and risk damaging the bike’s motor and frame.
Is It Possible to Modify the SX350 for Higher Speeds?
We’d advise against it. Razor’s manual says the SX350 should be repaired only with Razor’s authorized parts and not modified from its original design, and any modification voids the warranty. A faster motor or higher-voltage battery also puts more load on the stock brake, chain and wiring. Its 14 mph high setting is already rated for ages 13 and up, so if a rider has outgrown it, move up to a bike built for more speed and a bigger rider. Our kids’ motorbike guide compares the options.
Conclusion
We’ve found the Razor SX350 McGrath delivers impressive performance in a kid-friendly package. Its authentic motocross design paired with decent speed and battery life makes it a standout choice for young riders.
Though it has limitations on rough terrain, the safety features provide necessary protection. Overall, it strikes an excellent balance between excitement and security that both children and parents will appreciate.
