Tire Question.?

Question

With all the tire wear issues at Indy last week and probably more at Pocono this week, I'm just curious how thick the "tread" surface is on the Sprint Cup tires. Anybody know?

Answer 1

why do you think pocono will have that kind of problem? we went there before and there wasn't anything.

Answer 2

Well even though they had tire issues Indy i dont think there will be any issues at Pocono. Exspecially if you look back at the last race there. And no i dont no the thickness.

Answer 3

different for every track

compound wise

Answer 4

Condition of track and difference in surface at Indy didn't seem to be as thoroughly considered as it might have been.  Pocono entirely different set of parameters on tire wear experience.  One cannot always predict what is going to influence the outcome of a race before the checkered flag is dropped.

Answer 5

they get their worst tire wear at Indianapolis Motor Speedway, because of the track surface design. They already have the Pocono track figured out because of the track surface, and I don't think they will have that problem at all at Pocono. I don't know how thick the tread is on the tire. Pocono will be a fun race to watch. If your inspired by the technical aspect of NASCAR you'll love Pocono

Answer 6

Im not 100% positive but looking at the depth gauge and what they were marking on Sunday I will guess 1.00 inch.  I noticed the depth measurements across a normal wear tire were in the ranges from .40 to .65 that ESPN was showing.  So my answer is one inch.  It may be different for other tracks but I doubt it because it would change a car settup dramatically.  Fluffy????

I think this info can be found on Jayski.com but I don't feel like looking.  Let me know if Im close.

Here I found it quick but they don't include tread depth(or lack of tread).

Tire: Goodyear Eagle Speedway Radials

Number of Tires: Left-side -- 1,575; Right-side -- 1,575

Tire Codes: Left-side -- D-4170; Right-side -- D-4172

Tire Circumference: Left-side -- 87.3 in.; Right-side -- 88.6 in.

Technical Inspection Inflation:

Left Front -- 26 psi; Left Rear -- 26 psi;

Right Front -- 36 psi; Right Rear -- 36 psi

Minimum Recommended Inflation:

Left Front -- 16 psi; Left Rear -- 16 psi;

Right Front -- 37 psi; Right Rear -- 33 psi

Estimated Pit Window: Every 32-34 laps, based on fuel mileage.

Answer 7

Actually, there is no tread.  The tires have a flat surface. It wasn't the thickness that was the issue.   It was the compound formula used to make the tire.  It came off in a powdery form, that has never been seen before. The tires outer layer of rubber is reportedly 1/8th of an inch.

They have already ran once at Pocono this year and tires were not an issue.  The tires are different for Pocono.  Also, the surface at Pocono does not chew up the tires like at Indy.

Different Compounds for Different Tracks

NASCAR regulates which tire compounds are used on each track. The tire compound is the material the tire is made from -- a softer compound can provide more grip but wears faster, while a harder compound will last longer. Each track causes tires to wear differently, and the inside tires wear differently than the outside tires. Track surface, number of turns, tightness of turns and type of banking are all factors that determine how a tire will wear. Since tires are so critical for safety, NASCAR and Goodyear have determined the best compounds for the inside and outside tires for each track, and these are the tire compounds that the teams are required to use.

Treadless Design

NASCAR tires look completely bald, but that's not because they are worn out. It is by design. On a dry track, tires can generate more traction if more of their sticky rubber is in contact with the ground. Putting a tread pattern on the tire helps in wet weather, but in dry weather it is better to have the whole tire touching the ground. That's why NASCAR races stop whenever the track is wet. http://entertainment.howstuffworks.com/n...

Answer 8

There is roughly 10-13 laps of rubber on there

Answer 9

I think they were  runing  super swamper

Answer 10

Very thin compared to street tires.