Tyres explanation

yesterday night i had a spin in a race and after it my tyres have become so, can you explain to me what is the yellow of the squares of the left tyres and the white of the last one? flatspotten or what else?

https://postimg.cc/gallery/ubc8qt24/

 

Wear that’s all

 

?

 

Green is starting tire temp,Yellow is showing they have over heated but not critically , white is incremental wear . Once box’s all go white your tires are 100% gone

 

but left tyres remained yellow for the whole race after my spin

 

In the old days, around ISI's F1 2000 product, they tried to include tire heating, but the results were disastrous. If you over-cooked a corner and slid the car but then recovered, you would have scorching hot tires for the next two or three corners with abso-freakin'-lootely no grip. These days the tires are much more forgiving but it sounds like you may have generated some heating beyond the norms.
Give this a try: Load up Crew chief and try to duplicate your spin. See if the 'voice' mentions hot or cold, or flat-spotted tires.(heck, even perhaps a flat)

 

The colour also dipicts the amount of wear from my gathering, when I I do 1 stint races the front by the end have 1 block left but they are coloured red, even when I pull over after the race they stay the red colour, so I thought it was wear not heat

 

I think the color always refers to wear. Green = new tyre, yellow = slightly worn, red = end of life.
The bar decreases with wear, so if you have many yellow squares the tyre is still in normal wear condition, if you have little of them it means it is very worn out.

 

Sigh...a perfect example of why official rF2 user documentation should exist.

 

thanks, and the white square under yellows what it means?

 

The 6 squares represent tyre wear, as we already know.
The amount of wear is displayed in two ways.
1: By colour as @Uff described.
2: By percentage. There is 6 squares so each square represents 16.6% of wear.
So if you have 4 full coloured and 2 empty (white) squares you have approximately 66% tyre wear left.
The percentage just gives you a bit more of an accurate reading. 6 squares compared to 3 colours.

 

I always thought this is self-explaining...

 

For some, obviously not.

 

Tire wear is not linear with the grip. A tire could lose more grip at early stages or be almost new at the end of their life, it depends on various variables.

Best way to know it, is to test a tire to the end.

 

I was actually going to mention that in my previous post but plain forgot.
Here is an example of grip vs wear using the great little CarStats program.

 

More white blocks = more wear.
Yellow blocks = more wear than green, red blocks = more wear than yellow.

I believe it becomes yellow at around 80% wear remaining and red at around 50%.