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going from 245/65/17 to 255/60/17 ...



 
 
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  #1  
Old January 1st 04, 09:58 PM
4000 psi
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Posts: n/a
Default going from 245/65/17 to 255/60/17 ...

any issues with handling or anything else, assuming the tire fits the rim
and the car, etc.?

are the Michelin Cross Terrain any good ... they have a tread wear index of
700 ... does this mean that they never wear out or is this a typo? ))




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  #2  
Old January 1st 04, 10:11 PM
.boB
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Default

4000 psi wrote:

>any issues with handling or anything else, assuming the tire fits the rim
>and the car, etc.?
>
>are the Michelin Cross Terrain any good ... they have a tread wear index of
>700 ... does this mean that they never wear out or is this a typo? ))
>
>
>
>
>
>

A wider tire will give you better traction - more rubber on the
pavement. Wider tires are often worse on snow and light mud, since they
just float across the top instead of digging in. But you can compensate
for that with a more agressive tread. But a wider tire is better for
sand and deep mud, as it tends to float over the top.
Because the tread is wider, the contact patch is wider, which gives
you more friction for better traction. If you're doing hard cornering
or rapid braking/acceleration, that's important. If you're not, then
your wasting money.
The down side to that is that you will have increased rolling
resistance. It may cost you in MPG, acceleration, and coasting
performance. Depending on your vehicle and your driving habits, that
may or may not be noticable.
Hey, life's a trade off.

--
..boB
97 H-D FXDWG - Turbocharged!!
01 Dakota Quad Sport, 5.9/Auto/4x4
83 GMC Jimmy (beater)
66 427SC Cobra Replica - Project
66 Mustang coupe - Daily Driver



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  #3  
Old January 1st 04, 10:11 PM
.boB
external usenet poster
 
Posts: n/a
Default

4000 psi wrote:

>any issues with handling or anything else, assuming the tire fits the rim
>and the car, etc.?
>
>are the Michelin Cross Terrain any good ... they have a tread wear index of
>700 ... does this mean that they never wear out or is this a typo? ))
>
>
>
>
>
>

A wider tire will give you better traction - more rubber on the
pavement. Wider tires are often worse on snow and light mud, since they
just float across the top instead of digging in. But you can compensate
for that with a more agressive tread. But a wider tire is better for
sand and deep mud, as it tends to float over the top.
Because the tread is wider, the contact patch is wider, which gives
you more friction for better traction. If you're doing hard cornering
or rapid braking/acceleration, that's important. If you're not, then
your wasting money.
The down side to that is that you will have increased rolling
resistance. It may cost you in MPG, acceleration, and coasting
performance. Depending on your vehicle and your driving habits, that
may or may not be noticable.
Hey, life's a trade off.

--
..boB
97 H-D FXDWG - Turbocharged!!
01 Dakota Quad Sport, 5.9/Auto/4x4
83 GMC Jimmy (beater)
66 427SC Cobra Replica - Project
66 Mustang coupe - Daily Driver



-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 100,000 Newsgroups - 19 Different Servers! =-----
  #4  
Old January 1st 04, 10:31 PM
L0nD0t.$t0we11
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Posts: n/a
Default

Roughly 1/1/04 12:58, 4000 psi's monkeys randomly typed:

> any issues with handling or anything else, assuming the tire fits the rim
> and the car, etc.?


You are going a mere 10 millimeters wider. Check tire rack or
the michelin site for the diameter differences which should also
be minimal.
>
> are the Michelin Cross Terrain any good ... they have a tread wear index of
> 700 ... does this mean that they never wear out or is this a typo? ))


It is a highway tire. As for wear index, the rubber in the sidewalls
will probably wear out first unless your vehicle is misaligned or
you drive it like a Lotus.

Without identifying your vehicle, local weather, or whether you'll
be driving offroad, hard to say whether it is as good as the other
Michelins such as the M+S and AT, both of which are very good in
water, moderately good in snow or mild offroad with similar treadwear.

Think the Cross Terrain is what Ford puts on the Explorers now.

--
Fan of the dumbest team in America.

  #5  
Old January 1st 04, 10:31 PM
L0nD0t.$t0we11
external usenet poster
 
Posts: n/a
Default

Roughly 1/1/04 12:58, 4000 psi's monkeys randomly typed:

> any issues with handling or anything else, assuming the tire fits the rim
> and the car, etc.?


You are going a mere 10 millimeters wider. Check tire rack or
the michelin site for the diameter differences which should also
be minimal.
>
> are the Michelin Cross Terrain any good ... they have a tread wear index of
> 700 ... does this mean that they never wear out or is this a typo? ))


It is a highway tire. As for wear index, the rubber in the sidewalls
will probably wear out first unless your vehicle is misaligned or
you drive it like a Lotus.

Without identifying your vehicle, local weather, or whether you'll
be driving offroad, hard to say whether it is as good as the other
Michelins such as the M+S and AT, both of which are very good in
water, moderately good in snow or mild offroad with similar treadwear.

Think the Cross Terrain is what Ford puts on the Explorers now.

--
Fan of the dumbest team in America.

  #6  
Old January 2nd 04, 02:51 AM
Mike Borkhuis
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Posts: n/a
Default

> A wider tire will give you better traction - more rubber on
> the pavement.


Yes and no.... Traction is a function of contact area, preasure
(weight) and friction between the tire and the pavement.

> Because the tread is wider, the contact patch is wider,
> which gives you more friction for better traction.


Friction is a function of the tread compound and the condition of the
road surface... It does not change with the contact patch size.

To get traction, you need a certain amount of weight on the tires...
That preasure keeps the tire on the ground and keeps the tire from slipping
on the surface.
If you want to maximize traction, you need a small contact patch, a tire
with good grip (lots of friction) and the correct amount of weight on it.

Mike


  #7  
Old January 2nd 04, 02:51 AM
Mike Borkhuis
external usenet poster
 
Posts: n/a
Default

> A wider tire will give you better traction - more rubber on
> the pavement.


Yes and no.... Traction is a function of contact area, preasure
(weight) and friction between the tire and the pavement.

> Because the tread is wider, the contact patch is wider,
> which gives you more friction for better traction.


Friction is a function of the tread compound and the condition of the
road surface... It does not change with the contact patch size.

To get traction, you need a certain amount of weight on the tires...
That preasure keeps the tire on the ground and keeps the tire from slipping
on the surface.
If you want to maximize traction, you need a small contact patch, a tire
with good grip (lots of friction) and the correct amount of weight on it.

Mike


  #8  
Old January 2nd 04, 04:28 AM
4000 psi
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Posts: n/a
Default

> Without identifying your vehicle, local weather, or whether you'll
> be driving offroad, hard to say whether it is as good as the other


QX4 4x4, no off-road, driven in SoCal ... mostly dry and warm with
occasional wetness ... will be driven in the snowy mountains as well ...


  #9  
Old January 2nd 04, 04:28 AM
4000 psi
external usenet poster
 
Posts: n/a
Default

> Without identifying your vehicle, local weather, or whether you'll
> be driving offroad, hard to say whether it is as good as the other


QX4 4x4, no off-road, driven in SoCal ... mostly dry and warm with
occasional wetness ... will be driven in the snowy mountains as well ...


  #10  
Old January 2nd 04, 04:37 AM
L0nD0t.$t0we11
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Posts: n/a
Default

Roughly 1/1/04 19:28, 4000 psi's monkeys randomly typed:
>> Without identifying your vehicle, local weather, or whether you'll
>> be driving offroad, hard to say whether it is as good as the other

>
> QX4 4x4, no off-road, driven in SoCal ... mostly dry and warm with
> occasional wetness ... will be driven in the snowy mountains as well ...
>
>

The Cross Terrain will do pretty good for the highways. For snow
you have the choices of buying better snow tires or staying home or
driving
really really really slow.

--
Fan of the dumbest team in America.

 




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