Tyres

[NZNick]

^ 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…)

[Kaz-kzukNA1]

For the facelifted OE size spec, probably Michelin PS5 at the front and PS4 at the rear would be one option.
NSX 2000 mentioned this in his post above.

If you go up/down one size, you may find other options but if keeping TCS, you may want some feedback from other owners with the exact make/model/size of the tyre.

The real tyre measurement has significant variation depending on the make/model despite exactly the same size spec on the paper.


Kaz

[m666 edd]

I've decided to go with Kuhmo Ecsta PS71's front and rear. The Kuhmo tyres I had in the past in this size were impressive for the money.
A number of garages can't source them or say the rears are on back order but I believe I've found a place that can do them. I'll keep you updated.

[britlude]

just put Kumho on mine, 17 and 18" sizing tho....