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 Tires Discussion Thread V3

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RigerZ
post Sep 17 2016, 07:20 PM

On the way on the way
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From: Subang Jaya


Hi folks, I would like everyone to have a look at my tires and provide your comments about them (Size 185/60 R14):


Front tires, installed late last year and covered about 10-15k before being rotated in May. After that covered another 8k.

RHS. Advanced wear on the sides. Common knowledge says this is under-inflation wear, however I have constantly maintained it at 33PSI and checking every 1-2 weeks.
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LHS. Noticeable wear on the inside, some additional wear on the outside. Similar wear as the RHS tire only less severe.
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Rear tires, installed early 2014, covered about 60-70k before being rotated in May.

Scrubbing, noticeable side wear and little cracks. Again, looks like under-inflation wear although I have constantly maintained 33PSI. Are tires supposed to start cracking like this after only 2-3 years? Its driven everyday but always parked under hot sun.

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RigerZ
post Sep 19 2016, 10:56 PM

On the way on the way
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From: Subang Jaya


QUOTE(rocketeer_ace @ Sep 19 2016, 07:55 AM)
Front tyres.... Looks like alignment issue.  When was the last time you send your ride for alignment? Best practice.... Send your car for wheel alignment, balancing & wheel rotation every 8-10k.

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Last alignment adjust was in May together with the rotation. What kind of alignment issue will cause wear on both outer sides?


QUOTE(khairilyazit @ Sep 19 2016, 09:08 AM)
For the front, whats the suggested tyre inflation pressure?
Still looks like alignment issue..

For the rear, scrubbing happens if the tyres are not rolling correctly.. probably needs toe adjustment..

Also what brand of tyre?
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For standard 13" is 30PSI, but i'm using 14" and 33PSI
What kind of alignment issue could it be?

Proton Wira can adjust rear toe ke?

Front is Viking, rear is Maxxis

This post has been edited by RigerZ: Sep 19 2016, 11:01 PM
RigerZ
post Sep 20 2016, 05:54 PM

On the way on the way
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Senior Member
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From: Subang Jaya


QUOTE(khairilyazit @ Sep 20 2016, 06:25 AM)
Positive camber will wear out the sides.. or too much toe in..
Inner and outer or outer side only?
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Front RHS tire have extra wear on inside + outside and quite bad.
Front LHS tire have extra wear on inside (minor but noticeable) + outside (moderate)

Rear tires both have extra wear on inside (moderate) + outside (moderate) + scrubbing

Or else, you may refer to the attached photos.

QUOTE(rocketeer_ace @ Sep 20 2016, 09:25 AM)
Wear on the outside is due to the chamber setting is on the positive side.

33PSI on a Wira seem to be abit high to me.... Sorry, I could be wrong here tongue.gif
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Stock 13" tire pressure is 30psi, if 14" should be slightly higher I think?


I spoke with a friend who suggested it may be the front lower arm bushings have given way. hmm.gif

This post has been edited by RigerZ: Sep 20 2016, 05:55 PM

 

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