Rear Tyre advice / experience - Pirelli P-Zero 255-35-ZR19
Rear Tyre advice / experience - Pirelli P-Zero 255-35-ZR19
Author
Discussion

Ryvita

Original Poster:

730 posts

233 months

Friday 9th January
quotequote all
Hello hive mind.

So, seeking any advice or experience on this: It's time for some new rear tyres on my Evora S. It's a standard car with the standard 255-35-ZR19 96Y Pirelli P-Zero tyres on currently.

So looking at these existing tyres which are as said the standard fitment, there is a surprising quantity of what the street parlance would call "stretch" on the tyre. As in, it looks like this factory fit tyre is undersized to the width of the rim.

I understand that this can be a deliberate choice, as it affects the sidewall stiffness and the way the tyre behaves under load particularly in cornering. Would I therefore be mad to fit something wider? There is a 265-35-ZR19 98Y Pirelli P-Zero available which would be a compatible fit, just with the extra centimeter or so of contact patch and less stretch.

Anyone done this? Would it in fact have any effect at all, positive or negative?

Ryvita

Original Poster:

730 posts

233 months

Friday 9th January
quotequote all
It's hard to get a good picture of the effect, but this was an attempt.




Ryvita

Original Poster:

730 posts

233 months

Thursday 15th January
quotequote all
Spoke to Phil at Bell & Colvill yesterday and his advice was, "Yeah it looks weird but they did it deliberately, don't mess with it."


The urge to respect that very wise opinion and the way it was originally set up is fighting with the entirely unrational urge for more contact patch and more correct look. smile

mik_ok

1,580 posts

264 months

Monday 26th January
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You could always flip to the 19/20 setup instead. OEM rears are 275/30/20, although many run 285/30/20 as per the 400/410.

Bibs had more than one full sets for sale on TheLotusForum - not sure if he still has them?

blueg33

44,581 posts

247 months

Tuesday 27th January
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Michelin Pilot Sport tyres worked much better on my Evoras than the Pirelli’s.

TrevorHill

657 posts

14 months

Tuesday 27th January
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As above Michelin PS4S are a much better option. As for extra tyre width that’s a decision for you to make, would you have room for a 275?

blueg33

44,581 posts

247 months

Tuesday 27th January
quotequote all
My S Sports Racer had 275's on the rear as standard. IIRC I moved them to 285's.

Kawasicki

14,128 posts

258 months

Tuesday 27th January
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I tune car suspension for a living. Lotus did this intentionally to make the car more precise and predictable to drive.