HELP!!! Baby Moons

Old M/C trailers (70-80's) had them. Might try a M/C forum someonemay be able to direct you

Al,
You need to get used to the internet more!! I couldn't remember where I got the ones for my Atom trailer so I just did a search and it came up with 15,500 sites or references! I looked at a couple and it seems they may use the OD of the moon for the measurement.

I just purchased the smallest ones since I put 12" rims without the provision for any hubcaps on the TeeNee. I had to make hubcap clips and screw them on.

For the hole, I simply used a hole saw and cut them myself! I was going to put some trim/edging on the hole but decided to wait and see if the cut edge would start to rust.

Al,
Finding a original with the extruded hole for the bearing buddys will be a problem just because of the years since they hav been made. I'd just keep searching and hoping if your set on getting the same hole. I couldn't wait!

The only other thing you may consider is getting a regular set and then taking them to a "short run" metal fabricator. The extruded hole is simply made by using a larger bottom die compared to the top punch. I can't guarantee they won't gall the chrome at the rolled edge though.