This product is a wheel/tire set that I plan to use on a Pre-War ERA Grand Prix car. As provided by the supplier, all four wheel/tire sets are the same diameter - 25.5mm. The alloy wheel itself is 21mm diameter.
According to some drawings I've found, but more importantly, according to my eyeball estimate, these tires are a pretty good representation of the FRONT wheels/tires.
However, for the rear, I would prefer a tire with a taller sidewall, which would result in a larger overall diameter. Also, the real ERA E-Type itself appears to run with larger tires on the rear.
There is the PCS Classic 15'' Spoke Alloy Wheel/tire 24x6mm, Ref: PCS-32246. These tires appear to have a taller sidewall than the Vintage tires. Perhaps they could be stretched over the Vintage wheels?
Does anybody have any suggestions for a larger tire that will fit the Vintage PCS spoke alloy wheels?