Curious RC10L wheels

[V12]

Just have found this again at one of my boxes with old pan car stuff.
Back in the days I bought wheels for my RC10L and got one pair what lookes not exactly what you´re used to.
As you can see from the pictures one of the wheels is original RC10L but the other one is same dimension and plastic but looks completely different.
I remember our local distributor didn´t even believe I bought it this way.
Have you ever seen this?

[rooster]

The RC10L rear wheel is P/N 8150

The RC10 rear on road wheel is P/N 6940

You happen to have an Associated package with one of each.

I guess the intent was to be able to run a RC10 on road using this rear wheel and a RC10L front wheel with the P/N 6902 bearing.

R_

[Jay Dub]

I spoke with some of our local guys who worked for AE over the years. They said quality control was what you would expect with a bunch of teenage kids working there. I believe it as I have gotten some seriously fd'-up stuff over the years from them. -Jeff