A couple of people have told me that it's impossible to find wheels in
such good condition, but I know otherwise. So far, I've found three very
nice wheels. One of them had absolutely NO rust whatsoever and the
others only had some light surface rust inside which, after
sandblasting, showed just a few pits that were only about 1/64 inch
Most of the used wheels that I've seen have a fair amount of rust inside
the rim, forming two bands around the rim that correspond to the gaps
between the flap and the tire beads. This is where water collects and
stays wet for a long time. When the rust is sandblasted off, the pits
from the rust often go quite deep into the metal, typically between 1/32
and 1/16 inch deep (and sometimes more). Even though such wheels may be
safe enough, I'd still prefer to find some with less rust.
If anyone has a couple of nice M37 wheels they'd like to sell, e-mail
the details to me.
(Salt Lake City, Utah)
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