Razor 15128090
Razor MX350 Dirt Rocket Electric Motocross Bike
Instruction Manual
Product Overview
The Razor MX350 Dirt Rocket is a scaled-down, electric-powered dirt bike designed for off-road adventures. It offers a combination of performance and authentic motocross design, making it suitable for young riders. Featuring a high-torque, chain-driven electric motor, the MX350 can reach speeds of up to 14 mph (22 km/h) and provides up to 30 minutes of continuous use. Its design includes rear-wheel drive for enhanced traction and balance control, authentic MX-frame geometry, knobby tires, and a twist-grip throttle for an engaging riding experience on dirt.

Image: The Razor MX350 Dirt Rocket Electric Motocross Bike in blue, showcasing its design and features.
Safety Information
Important Safety Notice: No specific warnings are applicable beyond general electric vehicle safety guidelines. Always wear appropriate safety gear, including a helmet, knee pads, and elbow pads. Ensure the rider is within the recommended age and weight limits. Adult supervision is required at all times. This product is intended for off-road use only and should not be ridden on public streets or highways.
Legal Disclaimer: Please note that while this specific model is blue, some product descriptions may refer to a black/white version. Always verify the color and specifications of the product received.
Setup Guide
The Razor MX350 Dirt Rocket comes largely pre-assembled. Follow these steps for initial setup:
- Handlebar Installation: Attach the handlebars to the bike's stem. Ensure they are securely fastened and aligned for comfortable steering.
- Initial Battery Charge: Before first use, fully charge the battery for approximately 12 hours. Use only the UL approved charger provided with the bike. The charging port is typically located on the battery housing.
- Tire Pressure Check: Verify that the knobby tires are inflated to the recommended pressure as indicated on the tire sidewall or in the quick start guide. Proper tire pressure ensures optimal performance and safety.

Image: A close-up view of the 12-inch knobby tire, essential for off-road traction.
Operating Instructions
Operating the Razor MX350 is straightforward, designed for intuitive control:
- Power On/Off: Locate the power switch, usually near the battery compartment, and switch it to the 'On' position.
- Twist-Grip Throttle: To accelerate, gently twist the right handlebar grip towards you. The motor engages smoothly. The throttle is a single-speed control, meaning it's either on or off, but designed for smooth engagement.
- Hand-Operated Rear Brake: The brake lever is located on the left handlebar. Squeeze the lever to engage the rear brake. Applying the brake will also cut power to the motor for safety.
- Parent-Controlled Speed Switch: The MX350 features a low and high-speed mode switch, allowing parents to control the maximum speed for younger or less experienced riders. Ensure this switch is set appropriately before riding.

Image: Detail of the twist-grip throttle on the right handlebar, used for speed control.

Image: The parent-controlled low and high-speed mode switch, located on the bike's body.
Official Product Videos
No official seller videos are available for embedding at this time. Please refer to the written instructions and diagrams for operational guidance.
Maintenance
Regular maintenance ensures the longevity and safe operation of your Razor MX350 Dirt Rocket:
- Battery Care: Always recharge the battery after each use, even if only for a short period. Do not store the bike with a completely discharged battery. If storing for extended periods, charge the battery once a month.
- Tire Maintenance: Regularly check tire pressure and inflate to the recommended PSI. Inspect tires for wear, punctures, or damage before each ride.
- Chain Lubrication: The chain is covered for safety, but periodic lubrication with a bicycle chain lubricant is recommended to ensure smooth operation and prevent rust.
- General Cleaning: Wipe down the bike with a damp cloth after use to remove dirt and debris. Avoid using harsh chemicals or excessive water, especially near electrical components.
- Brake Adjustment: Periodically check the brake for proper function and adjust if necessary to ensure effective stopping power.
Troubleshooting
If you encounter issues with your Razor MX350, consider the following common troubleshooting steps:
- Bike Not Turning On: Ensure the power switch is in the 'On' position. Check if the battery is fully charged. Verify all electrical connections are secure.
- Loss of Power/Slow Speed: This often indicates a low battery charge. Recharge the battery fully. If the issue persists after charging, the battery may need replacement.
- Short Run Time: A short run time typically points to an aging battery that no longer holds a full charge. Consider replacing the battery. Ensure the bike is not being ridden on excessively steep inclines or rough terrain, which can drain the battery faster.
- Motor Not Engaging: Check the twist-grip throttle for proper function. Ensure the brake lever is not partially engaged, as this will cut power to the motor.
For persistent issues not resolved by these steps, please contact Razor customer support.
Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 44.5 x 24.5 x 31 inches |
| Item Weight | 55 pounds |
| Recommended Age | 13 years and up (Manufacturer recommended) |
| Battery Type | 1 Lithium Metal battery (included) |
| Battery Charge Time | 12 hours (for full charge) |
| Continuous Use Time | Up to 30 minutes |
| Max Speed | Up to 14 mph (22 km/h) |
| Weight Limit | 140 pounds |
| Motor | 350 watt electric motor, chain-driven |
| Brake Style | Hand operated rear brake |
| Tires | Large, knobby pneumatic tires |
Warranty and Support
For detailed warranty information, please refer to the official user manual provided with your product or visit the official Razor website. Razor offers various protection plans for their products, which can be purchased separately.
Customer Support: If you require assistance with setup, operation, maintenance, or troubleshooting, please contact Razor customer support directly. Contact information can typically be found on the Razor website or in the product packaging.
Online Resources: An official User Manual (PDF) is available online for further reference: Razor MX350 User Manual.
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