better change to lighter wheel like advanti storm series. very light weight.

Hi, i wanted to ask, few month ago i bought 2 Michelin PS3 for me ecobox, after few weeks, i realized that that 2 tyre is relatively not even, so need to put extra balancing when balancing the tyre, however i doesn't help much on high speed, it will vibrate quite badly.

Is this type of defect common? or that seller is selling defect/rejected tyre from factory?

Your absorber, lower arm bush, driveshalf everything in good condition or not? Before you claim tire problem, your car condition confirm is good & no problem?

This post has been edited by littlefire: Aug 10 2022, 02:39 PM

yes, i brought my car to certified/professional suspension tuner, he tested it and show what the tyre problem, when u do balancing(put tyre on the rotate mechine thingy) can see tyre is a bit uneven.. quite sad since i realize it tad a bit late.

Sport rim no bengkok? Did the tire shop take out the tires and check your sport rim condition?

This post has been edited by littlefire: Aug 10 2022, 02:52 PM

yup, it doesn't happen with my previous Kumho PS31, only after i changed to Michelin PS3..

epjx31what's the compound difference between XM2 and Primacy4ST, or rather, what are their relative strength/weakness in terms of conflict addressing?

2. Michelin tread compound cracking, seems common. Is that a problem?

This post has been edited by alexei: Aug 12 2022, 03:53 PM

Quite a tough question you have there. I can only say looking at their performances.

XM2+ and Primacy 4st are both wet braking focus tire line with different wear targets. XM2+ has a much higher wear requirement than Primacy 4st being the comfort segment. The wet braking vs wear conflict is the biggest here from a compound point of view as the Asia market do not really care about rolling resistance. This is a very general overview without going into deeper context.

I would not worry too much about cracking which happens on the surface and does not propagate down to the core. These are mostly because of the high amount of silica they are using to achieve a high wet braking level.

Thanks a lot.

My un-educated guess, based mostly on my experience, is that the cracking is wear nature of silica rich compound tyres.

Why is it that certain tyres have good grip throughout wear, while some will give perceived lesser grip once worn >60%, or some worse just >30% will have significantly lesser grip perceived?

My 2 sen is silica or sand in itself is highly abrasive in material property and hence tire compound with silica can withstand better/stronger from being 'worn down' by the highly abrasive asphalt/pre-mixed road surface .... thus increasing tyre longevity in particular during hard braking.

Besides, silica has a very high hardness property at the expense of brittleness property like a glass ..... easily gets cracked or scratch while preserving the 'mother material' of rubber tyre compound.

The cracks in a typically hardened tyre rubber in operational service over a period of time especially in a Michelin does not normally propagate to the next protective layer (right below the tread rubber compound), hence the structural integrity of hardened and used tyres are still intact offering maximum level of protection as designed or as intended.

Replacement of used tyres (after 3-5 years of usage) on believing it being hardened and/or observing (hairline) cracks on tread compound is imho unfounded and baseless as is commonly practised in lowyat/locally.

This post has been edited by zeng: Aug 13 2022, 11:44 AM

hi hi
Which All Terrain tire make and model can replace the Toyo Proxies R45 - 235/60R18 stock tires on Honda CRV AWD , without changing the rims or modifications including no lift , spacers ... just for the rugged looks and occasional gravel roads , not serious off roading

Had a quick look, unfortunately your tire size is more on the SUV size range. So we are mostly looking a SUV tires. No off-road products in this size. Continental UC6 SUV looks like the most off road tire in the size

I think this is a misconception. If you are talking about wet conditions, the ability to disperse water is greatly reduced as you are losing tread depth creating less channels to let the water flow out. This is one of the main reasons why you are loosing so much grip compare to new tires. The opposite is true for dry braking. The lower your tread depth, the better your dry braking as your top part of the tire gets stiffer. You can see this in most of Michelin's advertisement.

First of all, Thanks TS for sharing your invaluable experience and know how on tyre tech.

I do have questions regarding about SUV tyres and its properties.

My current ride was a Mitsubishi ASX. Bought it used and it was fitted with a normal Max Contact 6 which is pretty good and drives well with no issue.

The tyres are due to be changed and here now is the issue, i'm in dilemma of whether to remain using the normal passenger tyres of SUV tyres.

i know Originally it was fitted with SUV tyre, but given that it is running fine with the normal one, Plus, SUV tyres are much more expensive compared to normal ones, i'm pretty reluctant to switch if the SUV variant doesnt bring any significant benefit to the ride quality or such.

And since the normal tyre can take the load well, technically there wont be an issue fitting the normal tyres?

Btw, i've never tried any SUV tyres before, therefore i cant really tell the difference. I do take the car for light off road and the current tyres are still doing fine.

Would be great if you could share with us if it really safe to do that. in a way it is also creating awareness on road safety since there are significantly more ppl opt for SUV.

Thanks.

What is the difference between Car, 4x4 and SUV Tyres
https://www.youtube.com/watch?v=NTB3sMS2Aqo

From my past experience, SUV tire is just a marketing name. What we are looking for is the load index of a tire when it comes to supporting the load. However some manufacturers claims to have made SUV vehicle their testing vehicle for some SUV dedicated tireline. This is commonly practice in the industry and may yield certain advantage.

As your size is somehow caught in between (215/60R17), you have an option to choose. However I would suggest to look at your main requirements like wet braking or comfort/noise to decide the best product fit rather than relying on your SUV tires or not branding. Hope this helps.

Thanks for the insight.

i've read a substantial numbers of reviews and "comparison" with no real life test results, seems to me they are just throwing out words with nothing substantial like a test to back up their claims.

As i spent 95% of my time driving on tarmac, i guess sticking back to Normal Tyres would be the better choice. To me, i think SUV tyres are kind of like light version of 4x4 All Terrain Tyre??? if that even make sense.

Will definitely check out your reviews for my next tyre selection. Thanks again.

Is Hankook a good or reliable brand tire? Because for about additional RM50 I can get Continental, I mean is it worth paying the additional RM50? Looking to change all 4 tires at one go, so I am looking at additional RM200 here. Hankook 17" around RM350 while Continental 17" is RM400.

Yes, Hankook is a good brand, the best of the Korean tires and often gives top brands a run for their money. Since few years back, Tirereviews UK actually already categorized Hankook as premium brand. Which Hankook and which Continental models are you comparing though?

Nop. SUV & 4X4 tires are totally different. Proper SUV tires usually got higher load support, dual side wall layer & also higher treadwear for long lasting compare to normal passenger tires.

FYI
In Subaru Xv group some member using Michelin Primacy 4 on their rides and reported sidewall bulging & even cracks, similar to factory fitted MC5.
If you look into the tire details most passenger tires like Primacy 4 & MC5 only 1 layer sidewall (tire size 225/55/17 & 225/60/17), compare to similar size SUV tires usually got 2 layers. Which mean you got better protection when hitting potholes or side impact for SUV tires compare to passenger tires on similar size.

Most member which upgraded to Continental UC6 SUV reported last higher mileage & less sidewall issues compare to original MC5 tires. MC5 average around 50~60,000km, while UC6 lasted around 80~100,000km.

If your solely looking at braking performance or better cornering/grip there are specialize tires like Nexen RU1, Pirelli Russo, Falken FK510 SUV, Michelin PS4 SUV which can support high performance SUV rating tires.

This post has been edited by littlefire: Aug 25 2022, 06:14 PM