I'm looking at a microfiche for my 87 CR 250 (at http://www.powersportspro.com/partsfish/) and I would like to order a rear fender (no I don't want an adaptable one). But there are 2 fenders listed (it's the same with all the plastic parts). One is labeled R119 and the other is R134. I presume these codes are for different shades of colors. So my questions are: which code is for the 87 and what do these codes mean?