https://www.ustires.org/whats-tire-0

https://www.continental-tires.com/car/tire-...cs/tire-mixture

https://en.wikipedia.org/wiki/Tire

Everything just a google search can get a lot information nowadays.. 

Just to add so that it answers your question directly:

The number indicates how much of that material is present. There are two places where this is checked and labelled:
1. The tread counts the number of material if you cut through the tire directly in the middle
2. The sidewall counts the number of material as you cut through the sidewall

So for example:
Tread: 1 polyester + 2 steel + 2 nylon
Sidewall 2 polyester
This means that there is 1 polyester body ply at the middle of the tire followed by 2 layers of steel belts and finally 2 layers of nylon cap material that is present at the center of the tire (from bottom to top)

At the sidewall there is 2 layers of body ply material. In this case it is the same ply material that is found at the center but wrapped around by the bead and runs up the sidewall.

Different tires will have different combination of body ply, and nylon cap depending on its speed rating and required performances. All car tires will have 2 layers of steel belts.

Thanks for this detailed explanation.
What I noticed was, in the budget tire category, say Toyo CR1 / Conti CC6 / Hankook Kinergy / GY Triplemax etc, each has different combinations of tread/sidewall. Tire manufacturer does not publish this info in their website. We only got to know the info when look at actual tire.
Based on your experience, what are the best combinations for a budget tire?
TQ Sir

Yes I wouldn't expect them to publish because even if the same tire size e.g. 185/55R15 under the same company - the tire construction will vary depending on again the speed symbol of the tire and the performances required. The best combination is actually the one that is on the actual tire as that combination has been tested and will meet all the regulatory and safety requirements set by the company and by the law.

What are the best tires for 225/65/17 size wheels for a quiet driving experience?

let say ,
Toyo CR1 : 1 Polyester + 1 steel + 2 nylon
Conti CC6 : 1 Polyester + 2 steel + 1 nylon

Could you teach us how to choose the better one? (regardless of their treadwear/dry/wet grip)

Thank you sir.

It is not possible to say which is better just by comparing the number of polyester/steel/nylon written on the tire. So please don't try to look into these numbers too much. They are there mainly for legal purposes.

And just to give you an idea as to why it is not possible - There a multiple variations of polyester body ply that is used in a tire by a single manufacturer and each manufacturer uses their own variation. So even if you have two tires stating that they have 1 polyester body ply like your example, I cannot tell you which is better because i do not know what type of polyester are the using. The same goes for the steel belt material and the nylon cap.

What are the best tires for 225/65/17 size wheels for a quiet driving experience?

Hi there, looking for recommendation for 215/50/17. I've been using stock 215/45/17 on my 8 yr old car. Previously mc5 -> uc6 -> uc6 currently. I would want uc7 or uc6 again but price has been increased since before. I'm thinking to change to 215/50/17 for better comfort. Appreciate if anyone can recommend other options with similar performance or so as uc6 but at a budget of 1.2-1.4k max. Thanks again.

Hi, currently using GT Radial CHAMPIRO SX2 215/45R/17. Why is this tyre so noisy? Is it normal?

Based on my price table , you have the following choices
Toyo Nano Energy NE03 215/50R17 356
Kumho Ecsta PS31 215/50R17 364
Goodyear EfficientGrip 215/50R17 368
Yokohama Advan Fleva V701 215/50R17 400
Goodyear Eagle F1 Sport 215/50R17 448
Continental Max Contact 6 215/50R17 460
Continental UC6 215/50R17 (NEW UC7) 480
Michelin Primacy 4st 215/50R17 540
Michelin Pilot Sport 4 215/50R17 (PS4) 590

Based on your budget requirement, Goodyear efficient grip is your best choice. Of course if I were to recommend what is the best choice, Michelin Primacy 4st would be my choice.

Hmm is it a brand new tire? What is the remaining tread depth? Usually noise actually gets better when the tread depth is lower. Could be an irregular wear issue?

Could you state how the noise feel like? That could give me more hints

I around 10 months old, probably 10K+ KM running. The more I use, the more noiser it getting I guess? Hard to describe, can say it echo so much like bearing problem sound but foreman checked, it not my bearing.

Owning a kei-car and the standard size is 165/50R16 but unable to find a shop that selling this size? Is there any way to purchase it locally? Or should I opt to change to a new rim with a more common size?

Owning a kei-car and the standard size is 165/50R16 but unable to find a shop that selling this size? Is there any way to purchase it locally? Or should I opt to change to a new rim with a more common size?

Owning a kei-car and the standard size is 165/50R16 but unable to find a shop that selling this size? Is there any way to purchase it locally? Or should I opt to change to a new rim with a more common size?