^ not sure about sidewall stiffness, but the Yokohama AD09 is made in the sizes that you quote - also not sure if it is available in the UK
Most other manufacturers don’t offer those 2 sizes in the same model, but most have both sizes in their range, so you might have to mix and match (within brand) with the exact/near to OEM spec speed and load ratings.
Getting a matching tyre for my NSX is proving a real challenge these days - over here in NZ I can’t buy a matching set of 4, but may be able to order something in (probably at vast expense…)
Last edited by NZNick; 06-05-2025 at 12:17 AM.
December '99 GH-NA2 110 series - 6AS62 Type S in Monte Carlo Blue Pearl