(I'm Brazilian and I use google translate)
Hello, I made a script that I searched a lot on the internet and did not find it, so I decided to do it myself. It is simple, when climbing on any bike is generated a helmet on the player's head, works with any skin. You can remove the helmet by typing /removecapa or descending from the motorcycle.
NOTE: For the script to work you must have the resource "bone_attach".