is 3-5 years old unused tyres kept in warehouse away from sunlight still safe to use on road?

what happen to my old tyre after left it within tyre shop

do they recycle the tyre?

How many tire u can carry in 1 go ?

good thread.

so far im using michelin for my car. those entry price model because it can last me more than 50k km.

as for bike, im using pirelli, very grip at corner.

my question is, those tire mostly made from malaysia and indonesia because of these 2 country hv rubber plantion?

When a tyre punctured with a 3 cm hole, the mechanic patched it with a round patch on the inside tyre wall. How long can this type of patching last?

Thank you for your reply.
Not the side wall. Wall behind the thread.
Will the glue get dried up and leaks again?

assume the same tyres model, is there any difference between made in china, thailand, indonesia, malaysia?

but i dont think there is a model of tyre that is manufactured in multiple country though

a 50% used ps4 vs a brand new made in china tyres e.g: Farroad FRD26 or westlake uhp, which will you choose?

Will upsizing from 185/55 R16 to 205/50 R16 affect in fuel economy and car acceleration assuming using the same wheels

I believe this is due to larger size but from online calculator it was way below (seems like the perfect size to upsize to) the 3 percent threshold (+0.25%) over 185/55 tires.

Why tyre shop ask me to rotate my tyres for a fee, when they're already rotating everyday when I drive?

They say dragon fruit sap can patch tyre up true ?

Are China made tyres getting more competitive nowadays? If so, for an average daily driver, it would be wiser to gk for China made tyres?

thanks for the advise. I was using almost all brands as I like to feel other makes of 'donus'. Somehow, If you are an average daily driver within town, I feel that there are next to no difference in terms of wet and dry handling. Even stopping also feels the same. Mind you that I tried tyres from top notch brands such as Michelin PS4s, PS4, Primacy 4, Turanza, PZeros to mid range such as Hankook V12evo2, Dunlop Maxx 050+ to budget range such as Dunlop D05, Firestone, etc etc.

Of course these top brands gives you some sense of 'security' but I really wonder whether it's really worth while to 'invest' in top brands. The reason I'm saying this is that because you can see some common defects in top brands such as Michelin PS4 rubber tends to 'peel off' at the thread or GY Asym and Pirellis that are well known of it's lump at the sidewalls etc etc.

Good thread!
My question - sometimes the tires (esp front) doesn't inflate at petrol stations, but all ok at tire shop. What could be the potential issue? I have tried multiple petrol stations just to make sure the machine/pressure sensor is not broken.

Thanks for the reply, I am not sure if my 6.5J wheel will be able to fit 205/50 wheels or not.

Tire shop person said cant fit while checking online the minimum width is 5.5J. Not sure who is correct who is wrong, they say its okay to fit 195/50R16 inside but the speedo will be off quite a bit

Hard to find good fitting third wheels since the stock wheels are not common offset unless go full custom which is not cheap.

Not sure if this is under your field or not.

Also, not sure which tire co your are in but I noticed some of tire brand model have different country of origin. Eg Pilot Sport 4 was made in France while the ST model was made Thailand. Likewise the same goes to Falken which certain model was made in Turkey while SEA model were made in Thailand. I believe Goodyear & Pirelli also hade made in China model & European made.

Are the quality same between country of origin for the same model of tires?

1) How long do tyres are really safe to be use. Is 5 years the max?
2) so im using an old rwd car which its stock wheels are wider in the rear. Right now i have 205/50/16 in front and 225/50/16 in rear. Problem is the rear tyre size is quite difficult to find. The one im using ps3. Which size do you suggest i change to or just stick to Michelline ps3/4..other brands didn't have this size😢

Sort of unrelated question but,

Is the tyre industry a good area of work for someone with product R&D background and an interest in cars?

And is it a difficult field to get into?

My current work/line of work is really boring me to death.

I believe he already answered.
They got their own quality & tolerance control, even in different plant or country the formula should be still similar for same tire model.

Why big size tyres is more expensive in myr compared to sg
?

I can get ps5  lesser by myr200-300 in sg