Paul -
The same is true of the Avon CR6ZZ and Morgan have fitted them as O/E. Reading the legislation, the legal responsibility seems to lie with the tyre seller/distributor. Since Morgan suspension and steering designs pre 1990 and post 1990 are basically the same it could be argued that current Morgans can use these tyres!
Best wishes,
Don.
Thanks Don
Trouble is that insurance companies don't work on common sense!