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 Ask my anything about tires, I am a tire engineer

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ktek
post May 31 2024, 05:43 PM

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QUOTE(whydoikeep doingthis @ May 31 2024, 02:28 PM)
starting to think the last one ngl...
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u pam during hot. after cold his pressure drop sikit

invest dashcam offline

This post has been edited by ktek: May 31 2024, 05:43 PM
ktek
post May 31 2024, 05:46 PM

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QUOTE(zeng @ May 31 2024, 10:55 AM)
By shallow you mean tread depth when new is lesser than 6 mm or 1/4"?

My XM2 was measured new at 6 mm by ruler. Actual may be 1/4" meaning 6.35 mm.

With this I get 115K km +- per pair with a residual tread depth of slightly higher than (the mandatory) 1.6 mm, i.e 2-2.x mm.

Just imagine, a GY street tyre in 1980s can get repeatedly 60-65K km life span (in a Saga then) -probably with alignment numbers meant for minimum tyre wear as part of the equation.

Tyre technology over the past 40 years have improved by leaps and bounds, be it rubber material technology or tread patttern design or manufacturing technology etc. IME current generation street tyre life of say, 45K km or below (at a residual tread depth of 1.6mm) is unacceptable and it is unlikely to be attributed to tyre brand/model etc.

Of course others' experience or encounters may differs, more so with prevalent adoption and acceptance of fear mongering of tyre safety/replacement at residual tread depth well higher than 1.6 mm.

However despite modern day computer or 'automation', the practice of wheel alignment and its skill and finishing has gone down the drain or longkang!
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never want to alignment/ balancing/ whatever. i diy replace to mc5 and run for 42k now
mc5 still got 50% flower.
ktek
post May 31 2024, 05:48 PM

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not to forget atm2 grip is much stronger than usual ppl expectation.
lianpang
post Jun 3 2024, 05:33 PM

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Hi thx for your detailed and some technical sharing aspects there.

Perhaps you may try and get a pair of GY ATM2 and try it out brows.gif

My personal experience changed on 2019, then shortly after was Covid19 . Rarely drive around during CV19 (2020/21/22) , and often keep my tyre air in check.
Used this tyre + -clocked about 40K km ish daily driven (from early 2023 to 2024 ) about 1year half. ( usually short distances )

attached is my current tyre flower example as of may2024. *gonna chg tyre soon, most likey Michelin XM2+ for a peace of mind but was wondering how MaxGuard owners review and experiences will differ further . My hse have another Civic hybrid, the flower pattern tread mm is thicker and get more mileages.

user posted image


QUOTE(zeng @ May 31 2024, 10:55 AM)
By shallow you mean tread depth when new is lesser than 6 mm or 1/4"?

My XM2 was measured new at 6 mm by ruler. Actual may be 1/4" meaning 6.35 mm.

With this I get 115K km +- per pair with a residual tread depth of slightly higher than (the mandatory) 1.6 mm, i.e 2-2.x mm.

Just imagine, a GY street tyre in 1980s can get repeatedly 60-65K km life span (in a Saga then) -probably with alignment numbers meant for minimum tyre wear as part of the equation.

Tyre technology over the past 40 years have improved by leaps and bounds, be it rubber material technology or tread patttern design or manufacturing technology etc. IME current generation street tyre life of say, 45K km or below (at a residual tread depth of 1.6mm) is unacceptable and it is unlikely to be attributed to tyre brand/model etc.

Of course others' experience or encounters may differs, more so with prevalent adoption and acceptance of fear mongering of tyre safety/replacement at residual tread depth well higher than 1.6 mm.

However despite modern day computer or 'automation', the practice of wheel alignment and its skill and finishing has gone down the drain or longkang!
*
ryanlow134
post Jun 4 2024, 08:32 AM

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QUOTE(lianpang @ Jun 3 2024, 05:33 PM)
Hi thx for your detailed and some technical sharing aspects there.

Perhaps you may try and get a pair of GY ATM2 and try it out  brows.gif

My personal experience changed on 2019, then shortly after was Covid19 . Rarely drive around during CV19 (2020/21/22) , and often keep my tyre air in check.
Used this tyre + -clocked about 40K km ish daily driven (from early 2023 to 2024 ) about 1year half.  ( usually short distances )

attached is my current tyre flower example as of may2024. *gonna chg tyre soon, most likey Michelin XM2+ for a peace of mind but was wondering how MaxGuard owners review and experiences will differ further . My hse have another Civic hybrid, the flower pattern tread mm is thicker and get more mileages.

user posted image
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Out of curiosity, what is that screw doing on your tyre?
ayamxxx
post Jun 4 2024, 06:11 PM

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QUOTE(lianpang @ Jun 3 2024, 05:33 PM)
Hi thx for your detailed and some technical sharing aspects there.

Perhaps you may try and get a pair of GY ATM2 and try it out  brows.gif

My personal experience changed on 2019, then shortly after was Covid19 . Rarely drive around during CV19 (2020/21/22) , and often keep my tyre air in check.
Used this tyre + -clocked about 40K km ish daily driven (from early 2023 to 2024 ) about 1year half.  ( usually short distances )

attached is my current tyre flower example as of may2024. *gonna chg tyre soon, most likey Michelin XM2+ for a peace of mind but was wondering how MaxGuard owners review and experiences will differ further . My hse have another Civic hybrid, the flower pattern tread mm is thicker and get more mileages.

user posted image
*
kene like this before for 1-year-old car with low mileage tyre/ car. so send to tyre workshop to remove this big screw and proceed with internal paste for the tyre repair kit at rm40+ iinm. the tyre no issue hitting 3 years of overall usage.
neo_6053
post Jun 5 2024, 12:29 PM

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Can please recommend tyre for bezza 2017? Using ori rim.
Been changing tyre from Perodua service center. Now it's time to change again, wonder is there any better option?
Just budget tyre below RM250. Hopefully relatively safe, fuel efficient, quiet .. not really into speed/performance
amscouzach57
post Jun 5 2024, 02:44 PM

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QUOTE(neo_6053 @ Jun 5 2024, 12:29 PM)
Can please recommend tyre for bezza 2017? Using ori rim.
Been changing tyre from Perodua service center. Now it's time to change again, wonder is there any better option?
Just budget tyre below RM250. Hopefully relatively safe, fuel efficient, quiet .. not really into speed/performance
*
Toyo Proxes CR1. It has the 175/60R15 size available

This post has been edited by amscouzach57: Jun 5 2024, 02:54 PM
neo_6053
post Jun 6 2024, 06:49 AM

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QUOTE(amscouzach57 @ Jun 5 2024, 02:44 PM)
Toyo Proxes CR1. It has the 175/60R15 size available
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Compare to cc7 and xm2+?
spreeeee
post Jun 6 2024, 09:31 AM

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QUOTE(neo_6053 @ Jun 6 2024, 06:49 AM)
Compare to cc7 and xm2+?
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xm2 > cr1 > cc7

cc6/cc7 sucks

This post has been edited by spreeeee: Jun 6 2024, 09:31 AM
neo_6053
post Jun 6 2024, 01:20 PM

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i see. btw , someone posted like this
size 175/65/14
dunlop j6 RM143
continental cc7 RM163
michelin xm2+ RM227

Dunlop so much cheaper, how is it?

I'm using good year from Perodua, forgot the model

This post has been edited by neo_6053: Jun 6 2024, 01:20 PM
amscouzach57
post Jun 6 2024, 09:42 PM

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QUOTE(neo_6053 @ Jun 6 2024, 01:20 PM)
i see. btw , someone posted like this
size 175/65/14
dunlop j6 RM143
continental cc7 RM163
michelin xm2+ RM227

Dunlop so much cheaper, how is it?

I'm using good year from Perodua, forgot the model
*
Most likely because Dunlop j6 tend to wear out faster.

Based on reviews, it is a bit noisy too.

Personally I prefer Michelin XM2+ as it is the best tire out of the 3, & also has a 6 year manufacturer warranty
miaopurr
post Jun 7 2024, 02:34 PM

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QUOTE(spreeeee @ Jun 6 2024, 09:31 AM)
cc6/cc7 sucks
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sucks how? poor grip in wet? noisy? harsh ride? not durable?

This post has been edited by miaopurr: Jun 7 2024, 02:34 PM
amscouzach57
post Jun 7 2024, 08:31 PM

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QUOTE(miaopurr @ Jun 7 2024, 02:34 PM)
sucks how? poor grip in wet? noisy? harsh ride? not durable?
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Very poor grip in wet.

The right phrase to describe it when braking. The feeling of "meluncur/sliding".


miaopurr
post Jun 8 2024, 06:44 AM

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QUOTE(amscouzach57 @ Jun 7 2024, 08:31 PM)
Very poor grip in wet.

The right phrase to describe it when braking. The feeling of "meluncur/sliding".
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That explains a lot haha
Shortest review and to the point

This post has been edited by miaopurr: Jun 8 2024, 06:45 AM
rexus
post Jun 8 2024, 04:31 PM

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Hi all,

looking for tyre recommendations for Gen 3 Myvi. I understand the tyre size should be 185/55 R15 but 195/55 R15 should fit as well.

Also, the current tyres have some unusual thread wearing where only the outer edge of the tyres are worn out. This happens only in the front tyres. What could be the cause of this?
zeng
post Jun 8 2024, 08:04 PM

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Your front wheel alignment requires adjustment IF the shop is good enough to do it.

No, it's not about tyre brand or model.

This post has been edited by zeng: Jun 8 2024, 08:05 PM
spreeeee
post Jun 10 2024, 10:20 AM

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what would be real recommendation to do alignment? read thru many articles.. too many different answers biggrin.gif
i.e., every how many km travelled? based on normal cruising.. no harsh pattern

This post has been edited by spreeeee: Jun 10 2024, 03:37 PM
ayamxxx
post Jun 10 2024, 10:32 AM

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QUOTE(spreeeee @ Jun 10 2024, 10:20 AM)
what would be real recommendation to do alignment? read thru many articles.. too many different answers biggrin.gif
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send it per 10k km for rotation, balancing, and alignment at most rm60+ per all. This will prolong the tyre life by rotation practice, especially if u use Michelin tyre. For workshop/ tyre shop, I choose those with good google rating review
ktek
post Jun 10 2024, 08:25 PM

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QUOTE(spreeeee @ Jun 10 2024, 10:20 AM)
what would be real recommendation to do alignment? read thru many articles.. too many different answers biggrin.gif
i.e., every how many km travelled? based on normal cruising.. no harsh pattern
*
look at tyre wear balance or not.
front back left right

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