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Old 09-21-2005, 05:01   #1 (permalink)
jamesp010@hotmail.com
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Tire life

Hi,

I need advice about assessing tire quality from the experts/ gurus in
this forum.

With regards to tire composition and characteristics, what are the
important things I need to look out for when assessing quality of an
unbranded tire. Assuming that the tires are used in the recommended way
( such as not over loading or over speeding), I have heard that there
are several characteristics of tires which make them last longer, and I
am hoping you can shed some light on the following:

Thread depth - Does the tire last longer if it has a deeper thread?

Ply Rating - Is there any disadvantage to having a high ply rating,
and is there any specific correlation between the number of plys and
the weight. (for example each ply should add x kgs to the weight.)?

Quality of rubber - Is there variation in quality of rubber that can
make a tire last longer. Do they mix rubber with anything to increase
durability?

Tire patterns - what are the advantages and disadvantages of using a
rib/lug/mix designs

Weight of the tire - If it is a heavy tire would it last longer
assuming that there is more rubber used.

Sidewall - is it better to have a

The weather condition here is very hot, dry and sandy most of the year
with 4 months of moderate rain. So even the well built roads tend to be
very sandy which I assume increases tire friction. Some of the areas I
travel through are very underdeveloped with a lot of pot holes on the
roads. I have heard that nylon/x-ply/bias tires are better then radials
for uneven road surfaces and radials are better for good road
conditions, is this true?

Thank you for your help,
James

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Old 09-21-2005, 07:01   #2 (permalink)
Alpha
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Posts: n/a
Re: Tire life


<jamesp010@hotmail.com> wrote in message
news:1127299821.091940.316910@f14g2000cwb.googlegroups.com...
> Hi,
>
> I need advice about assessing tire quality from the experts/ gurus in
> this forum.
>
> With regards to tire composition and characteristics, what are the
> important things I need to look out for when assessing quality of an
> unbranded tire. Assuming that the tires are used in the recommended way
> ( such as not over loading or over speeding), I have heard that there
> are several characteristics of tires which make them last longer, and I
> am hoping you can shed some light on the following:
>
> Thread depth - Does the tire last longer if it has a deeper thread?
>
> Ply Rating - Is there any disadvantage to having a high ply rating,
> and is there any specific correlation between the number of plys and
> the weight. (for example each ply should add x kgs to the weight.)?
>
> Quality of rubber - Is there variation in quality of rubber that can
> make a tire last longer. Do they mix rubber with anything to increase
> durability?
>
> Tire patterns - what are the advantages and disadvantages of using a
> rib/lug/mix designs
>
> Weight of the tire - If it is a heavy tire would it last longer
> assuming that there is more rubber used.
>
> Sidewall - is it better to have a
>
> The weather condition here is very hot, dry and sandy most of the year
> with 4 months of moderate rain. So even the well built roads tend to be
> very sandy which I assume increases tire friction. Some of the areas I
> travel through are very underdeveloped with a lot of pot holes on the
> roads. I have heard that nylon/x-ply/bias tires are better then radials
> for uneven road surfaces and radials are better for good road
> conditions, is this true?
>
> Thank you for your help,
> James
>


You mean Tyres right?

Dave


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Old 09-21-2005, 07:01   #3 (permalink)
topper
Guest
 
Posts: n/a
Re: Tire life

jamesp010@hotmail.com wrote:
> Hi,
>
> I need advice about assessing tire quality from the experts/ gurus in
> this forum.
>
> With regards to tire composition and characteristics, what are the
> important things I need to look out for when assessing quality of an
> unbranded tire. Assuming that the tires are used in the recommended way
> ( such as not over loading or over speeding), I have heard that there
> are several characteristics of tires which make them last longer, and I
> am hoping you can shed some light on the following:
>
> Thread depth - Does the tire last longer if it has a deeper thread?


Depends on the composition of the tire rubber, road conditions, the
tires "designed" use, and how it is actually being used... If you have a
soft rubber tire, and rough roads in your area, you have great traction,
but they will wear quickly. Having a harder rubber, but on smooth roads
will cause more slide, and the heat will build quickly and wear will
occur more rapidly. Misuse of the tire, or using the incorrect tire type
will tear up a tire regardless of tread depth. But get a good rubber
type for your general use and road conditions, and a deep tread will be
more life to your tire.

> Ply Rating - Is there any disadvantage to having a high ply rating,
> and is there any specific correlation between the number of plys and
> the weight. (for example each ply should add x kgs to the weight.)?


Ply is A layer of rubber-coated fabric or wire making up the tire
casing. The more layers the casing, then the more a tire will weigh if
the same amount of rubber is applied to the casing. If weight is your
concern, and tire replacement is NOT a concern, then use less plys, save
weight, spend money. If you are out on some back country tearing up the
country side, get something a little more bulletproof.

> Quality of rubber - Is there variation in quality of rubber that can
> make a tire last longer. Do they mix rubber with anything to increase
> durability?


Absolutely! on concrete/asphalt/main street:
Soft Rubber = Short life, Fast Warming, Better cornering.
Hard Rubber = Long Life, runs cooler, Loose cornering

> Tire patterns - what are the advantages and disadvantages of using a
> rib/lug/mix designs


This has to do with application of the tire. Street Tire, On/Off road,
and strictly off road.

> Weight of the tire - If it is a heavy tire would it last longer
> assuming that there is more rubber used.


Again, depends on the tires rubber, designed use, and abuse.

> Sidewall - is it better to have a


This was the entire quote... But going with what you wrote, yes it is
better to have a sidewall, helps maintain air pressure.

> The weather condition here is very hot, dry and sandy most of the year
> with 4 months of moderate rain. So even the well built roads tend to be
> very sandy which I assume increases tire friction. Some of the areas I
> travel through are very underdeveloped with a lot of pot holes on the
> roads. I have heard that nylon/x-ply/bias tires are better then radials
> for uneven road surfaces and radials are better for good road
> conditions, is this true?


Okay, so .... HOW do you drive through this. If it is just to work and
back, spending an hour or so stuck in traffic, then the demands
(wear/tear) you put on your tire will be considerably less than if your
out on open country having a blast plowing through mud puddles. Google
around Car & Driver, Consumer Reports, Off Road, anywhere but from the
sites of tire manufacturers, and you should find more in depth, and
concise answers.



-=>Topper<=-
--
In 1896 50% of ALL registered cars in the U.S. were wrecked in ONE DAY!
In that same day... there were NO reported Truck Accidents anywhere.

"Igitur qui desiderat pacem, praeparet bellum." - Vegetius
The Email address attached to this post is NEVER checked. Reply in NG
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Old 09-21-2005, 07:01   #4 (permalink)
John S.
Guest
 
Posts: n/a
Re: Tire life


jamesp010@hotmail.com wrote:
> Hi,
>
> I need advice about assessing tire quality from the experts/ gurus in
> this forum.
>
> With regards to tire composition and characteristics, what are the
> important things I need to look out for when assessing quality of an
> unbranded tire. Assuming that the tires are used in the recommended way
> ( such as not over loading or over speeding), I have heard that there
> are several characteristics of tires which make them last longer, and I
> am hoping you can shed some light on the following:


First off, I have to ask exactly what an unbranded tire is. Certainly
it has to have some information on it. Most tires have alphabetic
performance ratings, maximum pressure, etc embossed on the sidewall.


>
> Thread depth - Does the tire last longer if it has a deeper thread?


Not necessarily.

>
> Ply Rating - Is there any disadvantage to having a high ply rating,
> and is there any specific correlation between the number of plys and
> the weight. (for example each ply should add x kgs to the weight.)?


It depends on the application.

>
> Quality of rubber - Is there variation in quality of rubber that can
> make a tire last longer. Do they mix rubber with anything to increase
> durability?


Sure, but there is not a person on this group including me and you that
can intelligently discuss the compounds used in tire material. Ask your
tire dealer for advice.


>
> Tire patterns - what are the advantages and disadvantages of using a
> rib/lug/mix designs


Ask your tire dealer.

>
> Weight of the tire - If it is a heavy tire would it last longer
> assuming that there is more rubber used.


Ask your tire dealer for advice on the type of tire that would be most
appropriate for your car given its intended use.


>
> Sidewall - is it better to have a


Yes, sidewalls are a very good thing to have on a tire.

>
> The weather condition here is very hot, dry and sandy most of the year
> with 4 months of moderate rain. So even the well built roads tend to be
> very sandy which I assume increases tire friction. Some of the areas I
> travel through are very underdeveloped with a lot of pot holes on the
> roads. I have heard that nylon/x-ply/bias tires are better then radials
> for uneven road surfaces and radials are better for good road
> conditions, is this true?


Again. ask your tire dealer for information. They will be able to
cross reference the appropriate tire for your car given the conditions
that it will be driven in.

>
> Thank you for your help,
> James


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Old 09-21-2005, 08:01   #5 (permalink)
jamesp010@hotmail.com
Guest
 
Posts: n/a
Re: Tire life

Sorry when I said unbranded I ment a brand that is not yet famous. I
hope you understand. I know that it could be dangerous trying something

new, this is why I am trying to find out what I should know about new
brands tires to minimise the risk. Apart from the making sure they have

E mark, Dot and ISO certified.

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Old 09-21-2005, 08:01   #6 (permalink)
John S.
Guest
 
Posts: n/a
Re: Tire life


jamesp010@hotmail.com wrote:
> Sorry when I said unbranded I ment a brand that is not yet famous. I
> hope you understand. I know that it could be dangerous trying something
>
> new, this is why I am trying to find out what I should know about new
> brands tires to minimise the risk. Apart from the making sure they have
>
> E mark, Dot and ISO certified.


Why not ask the seller who is presumably a tire store, whether the tire
in question is appropriate for your car. I'm not trying to be difficult
by pushing you toward buying from a knowlegable seller, but shops that
specialize in tire sales will have complete cross references and a
broad range of tires to select from. It will be literally impossible
for you to evaluate variables like rubber composition, tread style, ply
and sidewall design on your own, no matter what you are told on this
forum. If the tire has been tested and rated then the results may be
available through a publication like consumer reports.

There are websites that sell tires over the internet, and some of them
publish ratings of the products they sell. It sounds like the tire you
are looking at will not be among those products however.

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Old 09-21-2005, 10:01   #7 (permalink)
IYM
Guest
 
Posts: n/a
Re: Tire life

Recommend www.tirerack.com to start with.... I've found the user feedback
on tires a extremely valuable resource. A great tire may be not-so-great on
your particular truck and set-up. The user feedback will tell you how that
tire held up and under what conditions they were used on your car. (and
obviously the price!!!) It's how I ended up with Pirelli Scorpions on my
'99 4x2 and I couldn't be happier (unless I had the money for more expensive
tires with a great feedback)

BTW - I think by "unbranded" you are talking about lesser known brands
(instead of Goodyear, Mich, Pirelli, etc)?

Scott

"Alpha" <david@davidthedogman.com> wrote in message
news:43315b60$0$22651$61c65585@uq-127creek-reader-03.brisbane.pipenetworks.com.au...
>
> <jamesp010@hotmail.com> wrote in message
> news:1127299821.091940.316910@f14g2000cwb.googlegroups.com...
> > Hi,
> >
> > I need advice about assessing tire quality from the experts/ gurus in
> > this forum.
> >
> > With regards to tire composition and characteristics, what are the
> > important things I need to look out for when assessing quality of an
> > unbranded tire. Assuming that the tires are used in the recommended way
> > ( such as not over loading or over speeding), I have heard that there
> > are several characteristics of tires which make them last longer, and I
> > am hoping you can shed some light on the following:
> >
> > Thread depth - Does the tire last longer if it has a deeper thread?
> >
> > Ply Rating - Is there any disadvantage to having a high ply rating,
> > and is there any specific correlation between the number of plys and
> > the weight. (for example each ply should add x kgs to the weight.)?
> >
> > Quality of rubber - Is there variation in quality of rubber that can
> > make a tire last longer. Do they mix rubber with anything to increase
> > durability?
> >
> > Tire patterns - what are the advantages and disadvantages of using a
> > rib/lug/mix designs
> >
> > Weight of the tire - If it is a heavy tire would it last longer
> > assuming that there is more rubber used.
> >
> > Sidewall - is it better to have a
> >
> > The weather condition here is very hot, dry and sandy most of the year
> > with 4 months of moderate rain. So even the well built roads tend to be
> > very sandy which I assume increases tire friction. Some of the areas I
> > travel through are very underdeveloped with a lot of pot holes on the
> > roads. I have heard that nylon/x-ply/bias tires are better then radials
> > for uneven road surfaces and radials are better for good road
> > conditions, is this true?
> >
> > Thank you for your help,
> > James
> >

>
> You mean Tyres right?
>
> Dave
>
>



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Old 09-21-2005, 10:01   #8 (permalink)
Alex Rodriguez
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Posts: n/a
Re: Tire life

In article <1127299821.091940.316910@f14g2000cwb.googlegroups.com>,
jamesp010@hotmail.com says...

>Hi,
>I need advice about assessing tire quality from the experts/ gurus in
>this forum.
>With regards to tire composition and characteristics, what are the
>important things I need to look out for when assessing quality of an
>unbranded tire. Assuming that the tires are used in the recommended way
>( such as not over loading or over speeding), I have heard that there
>are several characteristics of tires which make them last longer, and I
>am hoping you can shed some light on the following:
>
>Thread depth - Does the tire last longer if it has a deeper thread?


Only compared to another identical tire with less thread depth.

>Ply Rating - Is there any disadvantage to having a high ply rating,
>and is there any specific correlation between the number of plys and
>the weight. (for example each ply should add x kgs to the weight.)?


No. Plys can be of different materials and that will affect the weight.
The tire's speed rating will also affect the weight. The reason is that
a tire with a higher speed rating needs to be strong enough to withstand the
higher forces that come with higher speeds. To make the tire stronger you
use more plys, so the tire will weigh more.

>Quality of rubber - Is there variation in quality of rubber that can
>make a tire last longer. Do they mix rubber with anything to increase
>durability?


Their are recipes used to give a tire certain characteristics.

>Tire patterns - what are the advantages and disadvantages of using a
>rib/lug/mix designs


The pattern can greatly influence wet weather performance.

>Weight of the tire - If it is a heavy tire would it last longer
>assuming that there is more rubber used.


No, the extra weight might be due to more plys.

>Sidewall - is it better to have a


A shorter sidewall will give you better turn in, but a harsher ride. A tire
with a shorter sidewall is also more prone to being damaged if you hit a
pothold. A tall sidewall will give you a better ride, but your turn in
response will be worse.

>The weather condition here is very hot, dry and sandy most of the year
>with 4 months of moderate rain. So even the well built roads tend to be
>very sandy which I assume increases tire friction. Some of the areas I
>travel through are very underdeveloped with a lot of pot holes on the
>roads. I have heard that nylon/x-ply/bias tires are better then radials
>for uneven road surfaces and radials are better for good road
>conditions, is this true?


No.
----------------
Alex

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Old 09-21-2005, 10:01   #9 (permalink)
Alex Rodriguez
Guest
 
Posts: n/a
Re: Tire life

In article <1127312363.097794.91570@g43g2000cwa.googlegroups.com>,
jamesp010@hotmail.com says...

>Sorry when I said unbranded I ment a brand that is not yet famous. I
>hope you understand. I know that it could be dangerous trying something
>new, this is why I am trying to find out what I should know about new
>brands tires to minimise the risk. Apart from the making sure they have
>E mark, Dot and ISO certified.


All tires are a compromise. You need to decide which characteristics are
most important to you. Then you can decide which tire to buy.
---------------
Alex

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Old 09-21-2005, 12:01   #10 (permalink)
Dave Smith
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Posts: n/a
Re: Tire life

jamesp010@hotmail.com wrote:

> Sorry when I said unbranded I ment a brand that is not yet famous. I
> hope you understand. I know that it could be dangerous trying something
>
> new, this is why I am trying to find out what I should know about new
> brands tires to minimise the risk. Apart from the making sure they have
>


Check out the comsumer magazines to see how they were rated. Look at their
warrantee. My personal experience is that some of those name brands are
highly overrated. The only blowout I ever had in my personal car was a
Michelin, and during the time I worked on a road crew and ad to pick up
tire carcasses, we found more Michelins blown out than all other brands
combines. The best snow tires I ever had back in pre radial ply days when
you had to switch, were Uniroyals. I have been using Hancooks for the bast
few years and had good luck with them. I am not a high speed driver and do
not have a performance car, so there is no need for me to spend the money
on premium tires, especially when there is more overhead in their
advertising than in their manufacturing.

I deal with a local tire and battery tire dealer who always give me a
discount and does free repairs and rotations for his regular customers. I
pay less for a whole set of tires than some people pay for each one, and no
blowouts, no flats, good tire life.


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