ukguy2k wrote:
Can cbr 125 handle hid
Sure, I had them on mine for a time. HID's use less power the standard halogen light so it's actually better for the bike as you have more available power with HID's. The important thing is to use a quality HID light/ballast and to not generate too much heat. Too much heat and the lens will turn golden colored.
It's expensive, and time consuming, to do it properly as you want to install a proper projector assembly too. I haven't looked into LED's yet but they seem to be the new thing and perhaps there's no heat.