Razor MX400 Dirt Rocket Kids 

Kids and teens craving adventure often dream of owning a dirt bike, but the noise, smell, and maintenance of gas-powered bikes can hold parents back. Safety is another huge concern. Enter the Razor line of electric dirt bikes – a potential solution to these common pain points.

The Razor MX400 Dirt Rocket, in particular, addresses these concerns head-on. It delivers the thrills of off-road riding without the drawbacks of a traditional dirt bike. Is it the perfect solution? In this review, we’ll delve into that question, explore common frustrations experienced with dirt bikes, and examine how the Razor MX400 aims to solve them.

Razor MX400 Dirt rocket Electric Bike [2024]

  • Motor: High-torque, chain-driven electric motor (power output not often specified by Razor)
  • Battery: 24V (two 12V) sealed lead-acid battery system
  • Top Speed: Up to 14 mph (22 km/h)
  • Run Time: Up to 30 minutes of continuous use
  • Charge Time: Approximately 12 hours
The best electric dirt bike for kids and teens that often dream of owning dirt bike

Here’s a discussion of the Razor MX400 Dirt Rocket Electric Bike’s category and class:

Category:

  • Electric Dirt Bikes: This is the most obvious category, as it’s an electric-powered off-road motorcycle.
  • Kids’ Dirt Bikes / Youth Dirt Bikes: Designed primarily for younger riders (usually ages 13+) based on its size and limitations.
  • Beginner Dirt Bikes: The MX400’s scaled-down size, moderate power, and speed restrictions make it an excellent entry-level bike for those new to riding.

Class:

  • Not Race-Oriented: The Razor MX400 is meant primarily for recreational fun.
  • Age-Based Classes: The MX400 might fit depending on the rider’s age and the specific competition rules.

Pros and Cons of the Razor MX400 Dirt Rocket Electric Bike:

Pros

  • Teaching Tool: Ideal for introducing kids to motorcycle controls and basic riding skills.
  • Safety Features: Auto throttle cut-off promotes safer reaction habits.
  • Sturdiness: Well-built and can even handle some adult weight.
  • Good Battery Life: Provides adequate ride time for kids.
  • Speed: A comfortable balance of fun and safety for younger riders.
  • Aesthetics: Kids find it visually appealing.

Cons

  • Long Charge Time: A noted inconvenience by some reviewers.
  • Performance on Uneven Terrain: Can struggle a bit on grass and dirt when the battery isn’t fully charged.
  • Battery Dependence: Overall performance and available ride time heavily rely on battery health.

Key electrical specs and features of the Razor MX400 Dirt Rocket Electric Bike

Electrical specs

Motor:

  • High-torque, chain-driven electric motor
  • Power output of 250 Watts (approximately 1/3 horsepower)

Battery:

  • 24V system using two 12V sealed lead-acid batteries
  • Up to 30-40 minutes of continuous ride time
  • Requires approximately 12 hours for a full charge

Speed & Controls

  • Top speed of 14 mph (22 km/h)
  • Twist-grip throttle for variable speed control

Additional Features

  • Hand-operated rear drum brake for reliable stopping power
  • Some models include an automatic throttle cut-off for enhanced safety

Weight and dimensions for the Razor MX400 Dirt Rocket Electric Bike:

Weight:

  • Approximately 57 – 62.5 pounds (depending on sources and whether packaging is included)

Dimensions:

  • Assembled Dimensions: 44 inches (length) x 24.5 inches (width) x 31 inches (height)

Razor mx400 Dirt Rocket Electric bike Review

The Razor MX400 Dirt Rocket is the gateway drug to the thrilling world of off-road riding. With its scaled-down size, electric powertrain, and safety-focused features, it’s ideal for introducing kids and teens (ages 13+) to the joys of moto-style fun. The MX400’s sturdy build and knobby tires tackle dirt and light trails, and its twist-grip throttle delivers a surprising kick that gets hearts pumping.

While it won’t win any speed contests, the MX400 is plenty fast for younger riders. The battery lasts a decent amount of time, but be prepared for lengthy 12-hour recharge cycles. Some users had quality control issues, so be ready to deal with potential troubleshooting.

Despite those downsides, the MX400 is a worthwhile buy for moto-curious kids. It effectively mimics the look, feel, and controls of a real dirt bike but with far less noise, maintenance, and potential danger. If you’re looking for a way to spark a lifelong passion for off-road adventures, the Razor MX400 is a solid starting point.

See other Dirt bikes
1. Razor MX650 Dirt Rocket
2. mx350 Dirt rocket
3. Top Dirt electric bike for kids

Range Test for Razor MX400 dirt rocket Electric bike

To calculate the range of the Razor MX400 electric dirt bike, our team employs a systematic approach. We begin by documenting the rider’s weight. Next, we specify the desired speed and duration of the ride. Utilizing a comprehensive formula that incorporates variables such as power consumption, battery capacity, efficiency, speed, and time, we estimate the bike’s range. Our assessment involves conducting multiple tests across varied terrains, accommodating riders of varying weights to ensure thorough results. By meticulously inputting and analyzing the data, we derive the estimated range for the Razor MX400 electric dirt bike under diverse riding conditions. This methodical procedure enables us to furnish precise and insightful evaluations for our review article.

Range=( Battery Capacity×Efficiency Power Consumption ​ )×Speed×Time×(1+ Bike Weight Rider Weight ​ )

ScenarioSpeed (mph)Time (hours)Rider Weight (lbs)Range (miles)
Test 1140.51406.429
Test 2120.51305.526
Test 3100.41204.678
Test 4140.61506.997
Test 580.31103.842

Battery performance of the Razor MX400 electric dirt bike

To evaluate the battery performance of the Razor MX400 electric dirt bike, our team follows a meticulous procedure. Initially, we document the rider’s weight and select the desired speed and ride duration. Using a comprehensive formula that considers factors such as power consumption, battery capacity, efficiency, speed, and time, we estimate the bike’s range. Our assessment includes conducting multiple tests across various terrains, accommodating riders of different weights for comprehensive results. By systematically inputting and analyzing the data, we derive the estimated battery performance for the Razor MX400 under diverse riding conditions. This systematic approach ensures accurate and informative evaluations for our review article.

ScenarioSpeed (mph)Time (hours)Rider Weight (lbs)Battery Performance (minutes)
1100.512021.18
2120.615016.86
3140.413022.68
480.811029.13
5170.314017.88

Conclusion:

The Razor MX400 electric dirt bike offers an exhilarating ride for young riders aged 13 and up. With its powerful 350-watt motor, capable of speeds up to 14 mph, and a rechargeable 24V battery providing up to 30 minutes of continuous use, it delivers electrifying fun while building confidence and control. Additional features such as twist acceleration control, hand-operated rear brake, and durable steel frame ensure safety and durability. With pneumatic knobby tires for a smooth ride off-road, the Razor MX400 combines performance and reliability, making it an excellent choice for adventurous riders seeking an exciting off-road experience.

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