Kunray KR5V V2 New Upgrade Electric BLDC Motor 72V 5000W Upgrade Electric Motor For Razor, Electric Motorcycle, Go Kart Brushless DC Motor Mid Motor

• The KR5V V2 is a fully upgraded brushless IPM motor developed by KUNRAY for riders and builders who demand serious power, extreme durability, and real off-road performance.
• Designed for DIRT BIKE, E-MOTORCYCLE, GO-KART, and RAZOR MX500/MX650/SX500/RSF650/Indian650 platforms, the V2 version enhances structural strength, thermal reliability, and installation flexibility over the previous KR5V series.
• Eco‑Focused, Pure Copper & Aluminum Design:Kunray builds the KR5V with a full copper core and aluminum body—natural materials that improve heat dissipation and longevity.This reduces energy waste and keeps the motor running cool and efficiently, even during aggressive rides.
• Works well with 60-100A controller.
• 72V motor with TMP sensor, You can set the max temperature of the motor through the programming controller.
• If you’re seeking a high-torque, high-power motor that’s built for both performance , the KR5V V2 is a standout choice in the IPM (Interior Permanent Magnet) motor category—efficiency, response, and reliability

✅Add manufacturer codes on the case,better for after-sales service.
                                 
🔥 Core Advantages
⚡Wide Compatibility for EV Upgrades
Mounts directly into Razor MX650, MX500, SX500, Indian650,RSF650 chassis without modification. Ideal for Dirt Bike, Go-Kart, ATVs,Electric Motorcycle conversions. Supports multiple sprocket types for flexible installation.（#35 9T/#35 11T/420 -10T Sprocket Can Provided.）
⚡High-Speed Performance
With 6.0 Gear Ratio We ar e Hitting 60MPH at Full Battery on 72 Volt with 100 Line Amps ( Can Vary Depending on Riders Weight, Wheel Size, Chain Size, Tire Size, and Train.)
⚡Extreme Torque Output
Delivers up to 35 N·m of peak torque for instant launches, steep hill climbs, and aggressive off-road riding.
⚡Massive Power Delivery
5000W rated / 10000W peak ensures explosive acceleration and confident handling in demanding environments.
⚡IPM Motor Advantage
The Interior Permanent Magnet design maintains stable output under high currents while providing superior efficiency and thermal control.
⚡Reinforced V2 Construction
Upgraded shaft, mounting points, and end caps eliminate common failure points found in standard e-moto motors, ensuring long-term durability. engraved manufacturer code makes identification and support easier
⚡BLDC Motor
The brushless system runs smoothly with reduced noise and minimal mechanical wear, resulting in a longer service life and a more enjoyable ride.

 

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  📌Additional Notes
  √ When the motor is installed on the left side and requires counterclockwise rotation, the wiring configuration shall be as follows:

  PHAGE WIRE:

  yellow to yellow

  blue to green

  green to blue

  HALL WIRE:

  red - red

  black - black

  green - green

  yellow - blue

  blue - yellow
  √ If you need to use the reverse function, you must enable it in the FARDRIVER APP.Please set the parameters according to the following image.（Using the Kunray NS18-KR72V100A as an example, the parameters should be set as follows.）
  

  
  ⚠️Important Notes
• Do NOT exceed 150°F (65°C) motor temperature to avoid damage.
• Real-world performance varies based on rider weight, wheel size, tire type, sprocket ratio, and terrain.
  
  

NOTE:
the motors are designed for off-road use only. Be sure to check local laws before riding. kunray is not liable for any consequences due to unlawful use. Always yield to pedestrians and obey traffic regulations. Riding on sidewalks may be prohibited—please check your local laws.