check the rims on your trailer. There should be a number stamped in
somewhere visible on the outside; something like 6J x 14 or 6J x 15.
These numbers tell a retailer the rim size and the off-set. I cannot
imagine that Eberle used a "custom" made size for their trailers. Did
you check at JC Whitney? They have a method of measuring the bolt
pattern; even for odd numbers of bolts.

Good luck,

Ulrich Neumann
Libelle 'GM'

The trailer I have for my Libelle is a "Spengler" trailer. Its a real
oddball. I had a wheel damaged when a tire blew out. Took me three
months to find a wheel that fit. None of the usual methods for finding
the correct size were of much help and there were no helpful
distinguishing marks on the rim. The closest match I could find on the
internet or in reference manuals was a military VW sort of like the VW
Thing. Not easy to find. Another possibility was the '67 beetle which
apparently used different size wheels from other beetles. Not easy to
find either. Finally, someone suggested I try some late 1960's VW van
wheels. Eureka! They fit, although the offset was deep enough to require
some spacers. I would be willing to bet that those Opel wheels that
another poster suggested would fit!

So, if you can find some late 60's VW van wheels, try them.