[M2M]

Originally Posted by Synchro909

Late addition: Coker have responded and say that the only 21" tire they make is 5.00/600R21 and is too wide for the Model A wheel. That sounds more than reasonable so it looks like I might have to find a set of 19" wheels (not so easy here).

The Stahl 550/600R21 will fit a 21" Model A rim although the width a the 21" rim is less than ideal (a bit too narrow) which is why Coker told you no so they cover themselves as far as liability. I personally would use them without fear.

The 19" Model A rims I believe are slightly wider than the 21" plus the Stahl comes in five 19" widths including 500R19 and 550R19.