Stonerider bell moto10 - How to upload paints to helmet???

[base2style]

Hey everyone! Relatively new to mxb here... about 425+ hours on the game. I am having a difficult time downloading paints onto Stoneriders Bell Moto 10 helmet. Ive tried a whole bunch of things and cannot figure it out for the life of me. Can someone please guide me on how to upload a paint into that helmet mod!? Thanks!
Here is the link to the helmet that Im having trouble uploading paints onto...

https://mxb-mods.com/bell-moto-10-spherical

Here is the helmet paint I am trying to load onto the helmet...

https://mxb-mods.com/chrome-red-bull-bell-moto10