I have 500/5.25 x 16 EXCELSIOR on my 1951, and they fit both on the car and as spares. Bias Ply, not radials.

Cheers,
Mark

Last edited by MarkB; 21/03/22 12:20 AM.
Mark

1934 SS MX4
1938 Series 1 DHC
1951 Plus 4
2005 Roadster