Razor MX500 new controller wiring help

Joined
Nov 11, 2024
Messages
10
Location
St. George
Hi everyone,
I bought a Razor MX500 from Facebook Marketplace for $50. It works, but the battery is dead. I already have an e-bike with a 52V battery, so I thought it would be great to upgrade the MX500 with a bigger motor and controller to use the 52V battery I already have.
I ended up buying a cheap Chinese controller and motor kit, and I’ll attach some pictures. I was hoping to use the throttle that came with the kit and connect everything without any issues, but I’m a bit confused about how and where to connect certain wires!
I think I’ve figured out some of it, but I’m worried I might have it wrong. My main question is: Which wires connect to the throttle? Also, I don’t want reverse functionality, so which wires should I leave unconnected?
Thank you in advance for the help! I’ve been reading up on this a lot, but I’m still a bit confused. I’ll attach the pictures.
 

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Hi everyone,
I bought a Razor MX500 from Facebook Marketplace for $50. It works, but the battery is dead. I already have an e-bike with a 52V battery, so I thought it would be great to upgrade the MX500 with a bigger motor and controller to use the 52V battery I already have.
I ended up buying a cheap Chinese controller and motor kit, and I’ll attach some pictures. I was hoping to use the throttle that came with the kit and connect everything without any issues, but I’m a bit confused about how and where to connect certain wires!
I think I’ve figured out some of it, but I’m worried I might have it wrong. My main question is: Which wires connect to the throttle? Also, I don’t want reverse functionality, so which wires should I leave unconnected? Honestly the more I look at it the more I get confused. I thought I would be able to just plug the throttle right in and hook up the battery and connector and take off.
Thank you in advance for the help! I’ve been reading up on this a lot, but I’m still a bit confused. I’ll attach the pictures.
 

Attachments

  • IMG_0277.png
    IMG_0277.png
    1.2 MB · Views: 5
  • IMG_0271.jpeg
    IMG_0271.jpeg
    561.6 KB · Views: 6
  • IMG_0273.jpeg
    IMG_0273.jpeg
    3.7 MB · Views: 6
  • IMG_0275.jpeg
    IMG_0275.jpeg
    4.1 MB · Views: 4
  • IMG_0276.jpeg
    IMG_0276.jpeg
    3 MB · Views: 4
  • IMG_0278.jpeg
    IMG_0278.jpeg
    2.9 MB · Views: 5
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