2018 Tyre Thread

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Re: 2018 Tyre Thread

Post by PhillipM » Wed May 16, 2018 11:46 am

Heights don't follow road car conventions, race tyres are usually labelled by actual tread width (rather than a nominal tyre section width when mounted), and actual diameter/height, rather than a percentage.
So the 670 is the actual diameter of the tyre in mm.

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Re: 2018 Tyre Thread

Post by iichel » Wed May 16, 2018 11:52 am

Thanks guys. I was already questioning my own reasoning as the front and rear tires seems to have the same diameter.

But back to the question, does anyone know the thread thickness? Or a good approximation would be nice.

305*670*pi*0.4 = 256 cm^3 front rubber decrease
405*670*pi*0.4 = 340 cm^3 rear rubber decrease

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Re: 2018 Tyre Thread

Post by Mansell89 » Thu May 17, 2018 10:40 am

Martin Brundle, Sky F1:

“Somebody I respect a lot in the paddock caught my attention post-race. He said 'there's no point in trying to analyse any race or upgrade, it's simply about who is generating the right tyre temperatures at any given point'. That rather spoiled my day.”

Now I know MB doesn’t command an awful lot of respect on this forum but he does have some super informative contacts. I think he lets on that there’s a major tyre factor in this years performance and perhaps these Pirelli changes are also making Martin sit up and wonder why this has happened.

F1 politics at it again?

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Re: 2018 Tyre Thread

Post by PhillipM » Thu May 17, 2018 11:11 am

Keepin the tyres in the window is a big part of performance this year, they seem far more tricky than last years constructions - it's why you suddenly saw TR shoot up for one circuit and then have been poor since for example, they chanced on a better setup for the tyres than a lot of other teams that weekend.

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Re: 2018 Tyre Thread

Post by godlameroso » Thu May 17, 2018 4:02 pm

For sure the difference between being in the window or not is easily half a second.
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Re: 2018 Tyre Thread

Post by NL_Fer » Thu May 17, 2018 10:04 pm

https://www.motorsport.com/f1/news/f1-s ... o-1038452/

Maybe not EVERY race, but at lease one ultra or hyper should be fun. Medium-Soft-Ultrasoft or Soft-Supersoft-Hypersoft.

It looks like the SS is becoming the unpopular again. Slightly faster the Soft for the first laps, be degrading and slowing down in to fast.