Just an update, I tried the Desser Retread tires for my Legacy (not the Monster retreads). Desser told me they were exactly the same as OEM 5.00x5s.  The fit was marginal at first but after a few hours, they grew a little. They’re touching top fork bolts and probably won’t fit the wheel wells now. They are probably at least .5in larger than OEMs.  I will have to R&R and try and return them.

Jon