Originally Posted by
dmark
Red label hubs I think has a removable dust cover.
I just cleaned a pair of gold label Luxe sitting cone down (then flip) in a cup of Dawn and warm water sitting in my Harbor Freight Ultrasonic They had a hard black crust from dried grease that came off after a few 6 minute sessions,
I think you're right as well. I have a Moto GR from '73-'74 that had gold label hubs, and I assumed that is what these are but they are not. I don't know off hand the dates on these things but I thought the gold label were older and the red newer but that could be wrong.