Razor MX650 vs Razor SX500

Peter Simms // Last Updated on September 21, 2023

Based on our comprehensive comparison and points system, the Razor MX650 is the best electric dirt bike among the two options, offering higher top speed, weight limit, motor power, and seat height

Electric dirt bikes have gained immense popularity over the years due to their eco-friendliness and smooth operation3. In this blog post, we will compare two popular electric dirt bikes, the Razor MX650 and Razor SX500, to help you determine the best option for your off-road adventures.

Technical Specifications

Here is a side-by-side comparison of the technical specifications for the Razor MX650 and Razor SX500:

Comparison FactorsRazor MX650Razor SX500
Top Speed17 mph15 mph
Weight Limit220 lbs175 lbs
Estimated Age Range16+ years14+ years
Battery36V (3 x 12V)36V (3 x 12V)
Ride Time per Full Charge40 minutes40 minutes
Battery Charge Time12 hours12 hours
ThrottleVariable speedVariable speed
BrakesRear discDual disc
SuspensionDual suspensionDual suspension
Seat Height25″20″
Hand GripsSoft rubberSoft rubber
Tires (pneumatic knobby)16″16″
Assembly Time15 minutes15 minutes
Dimensions L x W x H (Inches)55 x 36.5 x 3656 x 24.5 x 36
Bike Weight98 lbs98 lbs

Points System

To determine the best electric dirt bike, we will use a points system based on the following criteria:

  1. Top Speed
  2. Weight Limit
  3. Motor Power
  4. Seat Height
  5. Brakes

Each criterion will be scored on a scale of 1 to 5, with 5 being the highest score. The bike with the highest total score will be considered the best option.


Razor MX650:

  1. Top Speed: 5
  2. Weight Limit: 5
  3. Motor Power: 5
  4. Seat Height: 5
  5. Brakes: 3

Total Score: 23Razor SX500:

  1. Top Speed: 4
  2. Weight Limit: 4
  3. Motor Power: 4
  4. Seat Height: 4
  5. Brakes: 5

Total Score: 21

Understanding Electric Dirt Bike Specifications

When considering an electric dirt bike, it is essential to understand the various specifications and their importance. Here, we will discuss each spec from the Razor MX650 and Razor SX500 comparison and explain its significance:

  1. Top Speed: The top speed of an electric dirt bike determines how fast it can go. A higher top speed is generally preferred for more experienced riders or those who want to ride on challenging terrains1. The Razor MX650 has a top speed of 17 mph, while the Razor SX500 has a top speed of 15 mph.
  2. Weight Limit: The weight limit indicates the maximum weight the bike can support. A higher weight limit allows for a wider range of riders to use the bike comfortably1. The Razor MX650 has a weight limit of 220 lbs, while the Razor SX500 has a weight limit of 175 lbs.
  3. Estimated Age Range: The estimated age range suggests the appropriate age group for using the bike. This helps ensure that the bike is suitable for the rider’s skill level and physical abilities1. The Razor MX650 is recommended for riders aged 16 and above, while the Razor SX500 is recommended for riders aged 14 and above.
  4. Battery: The battery capacity affects the bike’s ride time and overall performance. Both the Razor MX650 and Razor SX500 have a 36V (3 x 12V) battery, which provides a ride time of 40 minutes per full charge1.
  5. Battery Charge Time: The battery charge time indicates how long it takes to fully charge the battery. A shorter charge time is more convenient, especially for those who frequently use their electric dirt bike1. Both bikes have a battery charge time of 12 hours.
  6. Motor: The motor power affects the bike’s acceleration, torque, and overall performance. A more powerful motor generally provides better performance1. The Razor MX650 has a 650W motor, while the Razor SX500 has a 500W motor.
  7. Throttle: The throttle controls the bike’s speed. Both bikes have a variable speed throttle, allowing riders to adjust their speed according to their preferences and riding conditions1.
  8. Brakes: Effective brakes are crucial for safe and controlled riding. The Razor MX650 has a rear disc brake, while the Razor SX500 has dual disc brakes, providing better stopping power1.
  9. Suspension: A good suspension system ensures a comfortable and smooth ride, especially on rough terrains1. Both bikes have a dual suspension system, providing a comfortable ride on various terrains.
  10. Seat Height: The seat height affects the rider’s comfort and control over the bike. A suitable seat height allows the rider to touch the ground with their feet when stationary1. The Razor MX650 has a seat height of 25 inches, while the Razor SX500 has a seat height of 20 inches.
  11. Hand Grips: Soft rubber hand grips provide comfort and better control over the bike1.Both bikes have soft rubber hand grips.
  12. Tires (pneumatic knobby): Pneumatic knobby tires provide better traction and control on off-road terrains1. Both bikes have 16-inch pneumatic knobby tires.
  13. Assembly Time: The assembly time indicates how long it takes to put the bike together. A shorter assembly time is more convenient1. Both bikes have an assembly time of 15 minutes.
  14. Dimensions L x W x H (Inches): The dimensions of the bike affect its maneuverability and storage requirements1. The Razor MX650 measures 55 x 36.5 x 36 inches, while the Razor SX500 measures 56 x 24.5 x 36 inches.
  15. Bike Weight: The weight of the bike affects its handling and ease of transport1. Both bikes weigh 98 lbs.

Understanding these specifications will help you make an informed decision when choosing the best electric dirt bike for your needs.


Based on our points system, the Razor MX650 scores higher than the Razor SX500, making it the better electric dirt bike of the two. The MX650 offers a higher top speed, weight limit, motor power, and seat height, while the SX500 has better brakes. Ultimately, the choice between the two bikes will depend on your personal preferences and requirements, but the Razor MX650 seems to be the more versatile and powerful option.