Dear Bro epjx31

Quick question:

1)I see you have tire upsize calculator, do you have possibility of the similar table for downsizing for those in the minority?

2)
-My car ori tires is 185/55R16 and now I am driving 195/50R16 with stock wheels. I plan to downsize but I not sure to go either 195/50R15 or 195/55R15?
-I tend to rempit the car so which size is better suited for it? (Seems liek PS3 would be my choice due to wet weather all rounder performance)
-Ideally I prefer to car have sharp response Also, can both sizes it fit onto 6J wheels?
-Will there be performance issue when driving 6J wheels hard attached with either 195/50 or 195/55 wheels?
-Does downsizing to 195/55 and 195/50 15 inch wheel violate the 3% rule of thumb?

3) You as engineer do you have access to super discounted tires?

Is this true? New tire perform best after 1 year from manufacturing date, as its chemicals take time to stabilized ?

Tire is not food, not the fresher the better!

https://www.linkedin.com/pulse/tire-food-mo...etter-rina-liu/



This post has been edited by raulxiver: Jan 23 2023, 10:45 PM

True.
I prefer 'older' new tyre, not fresh tyre when new.
Unfortunately it is hard to come by in KL.

This post has been edited by zeng: Jan 25 2023, 08:27 AM

wet road condition

Agree with what @mdziaf said. Just be cautious during then rain. You should change once you feel that the risk is not worth anymore 😂😂😂

Noted, thank you for the guides.

Alright.


This post has been edited by Natsukashii: Jan 25 2023, 02:59 PM

To be honest, it's not something you should be concern off. There is some differences which can be measured only with "technical" equipment for us in the tire industry. Running in the tires is a common practice before any wet braking or winter performance test. I would always take fresh tires, as it has less oxidation and oil migration. 😂😂😂

https://tiresize.com/comparison/

https://kereta.info/wheel-size-vs-tyre-size...dan-rim-sesuai/

Write so long, but no ask google about tire size comparison & sport rim width suitable tires?

1 and 2 answered above


3 - shopee dan lazada is cheaper

Yeah, i did went through webpage to see if it suitable or not, and those page did answered my question

But I just need a person who have hands on experience on tire engineer to give his opinion.


3 - even if the person works in tire co? I am asking specifically if such discount exists if he/she working in tire co directly. Like those super cheap air fare for those working in airlines.

Engineers usually did not mix with sales & marketing. Even if yes also consider insider trading which is not allow publicly.

If you want better offer go check their fb page or official distributor and ask few nearby tire shop for price comparison.

My former company did provide staff discounts, but its rarely utilized. Like I said, you can get better deal on Shopee and Lazada compared to the staff discounts

Not to derail the thread but insider trading is only for securities not for items sold by the company

Bro, it can be material. I personally knew 1 Toyo/Silverstone engineer from Taiping/Kamunting usually these tires are for internal stuff use only and not to sell for outsider, if got cheap offer for public those are being sold by distributors. He also feedback if the tire is not on vehicle and want to bring out, they (security) purposely cut to make it damage and unable to sell to public.

This post has been edited by littlefire: Jan 26 2023, 09:28 AM

I can only say 😂😂😂

hi all,
currently on a set of UC6, 215/55/R18 milage 4,500km. as these few days raining, personally i find it is not really great for wet.

any recommendation for other tyres?

Is this implying that the statement is in fact true or false? 😂

turanza, triplemax2, conti premium contacts

Primacy 4, FK510

Based on my tire price table

Name Tire Size Price(RM)
Michelin Primacy 4st 215/55R18 680
Continental UC6 215/55R18 (UC6) 546
Goodyear Assurance MaxGuard SUV 215/55R18 489

I would say 4ST is still the best wet braking product out there.

https://www.tyrereviews.com/Article/2022-AZ...V-Tyre-Test.htm

This is the nearest 215/55/R17 tire test.

FYI, what you need in wet? Wet braking, handling, hydroplane? Too many variance.

If base on latest test reviews from this website, Wet Braking champion now leading is Maxxis HP5. Yes, the Taiwan tire brand.
Primacy 4 only manage to be 2nd on the test results and Wet Handling & Straight Aqua is even worse.

Michelin only good in wet braking at no.2 and not all, so if you want to consider like wet handling & hydroplane resistance you might be better to look for other options like Maxxis HP5, Bridgestone T005 or Goodyear Efficientgrip.