Well Kawasaki probably picked the 2 colors they thought would sell the best and that "Candy Burnt Orange" color has been offered in the past on other models and hasn't sold very well. But if you REALLY want that color it's not that hard to just repaint the body panels yourself. I'm going to repaint mine(just to make it look different) and I've had good luck before with the paint from
ColorRite Paint:
Kawasaki 17L Candy Burnt Orange
There are only 6 body parts that are painted on the Z125(from what I can see) so it won't take long to remove, prep and spray them. Or just take them to your local painter. The GROMs come in much more boring colors than these 2 choices and plenty of GROM owners paint them as well. I'm thinking the ZX-14R metallic blue....
Kawasaki 25V Candy Surf Blue