Join Date: Feb 2010
Location: Albany, OR, USA
I've wondered that myself. I have ridden with a few K's this last year and some like you said are silver and some are black. Two of the bikes where the same year and model (Both 86's) and one was silver and the other black. My K100RS SE has Bahama Blue forks that match the blue over pearl white SE paint scheme with pearl white rims.
I had heard rumors that some fork spring rates had been adjusted in the '86/'87 range maybe the color has to do with that.?. Jeep Grand Cherokees have two sets of brake manufacturers and they are either gold of silver anodized so you get the correct parts.