[DeTomaso] 17-18 tire size

[MikeLDrew at aol.com]

In a message dated 8/17/14 19 40 41, cuvee at sbcglobal.net writes:


> Also how does the grip/tire wear number work, 200, 300, 400? Higher 
> number or lower number better?
> 

>>>It depends on how you define 'better'.

Higher number is less sticky/longer lasting.   Is that 'better' to you?   
To some people yes, others no...

Note that the treadwear grade number has no objective meaning.   
Manufacturers arbitrarily assign a treadwear number to a given tire, nominally in 
comparison to other tires they make.   So while a Goodyear 100 treadwear grade 
tire will have much shorter life than a Goodyear 400 grade tire, it doesn't 
mean that a Pirelli 100 grade tire will have similar characteristics to the 
Goodyear 100 grade model.   A Pirelli 200 might wear out faster than a 
Goodyear 100...there's no way to know in advance.

Normally, a tire with a lower wear index will also have more traction.   
You can make broad assessments that way, and identify the general 
characteristics of a tire, but you can't specifically compare tires of different brands 
with any real accuracy.   So in the above example, a Pirelli 200 might have 
more traction than a Goodyear 100.   Maybe, maybe not.

More info here:

http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=48

Mike
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   In a message dated 8/17/14 19 40 41, cuvee at sbcglobal.net writes:

     Also how does the grip/tire wear number work, 200, 300, 400? Higher
     number or lower number better?

   >>>It depends on how you define 'better'.
   Higher number is less sticky/longer lasting.  Is that 'better' to you?
   To some people yes, others no...
   Note that the treadwear grade number has no objective meaning.
   Manufacturers arbitrarily assign a treadwear number to a given tire,
   nominally in comparison to other tires they make.  So while a Goodyear
   100 treadwear grade tire will have much shorter life than a Goodyear
   400 grade tire, it doesn't mean that a Pirelli 100 grade tire will have
   similar characteristics to the Goodyear 100 grade model.  A Pirelli 200
   might wear out faster than a Goodyear 100...there's no way to know in
   advance.
   Normally, a tire with a lower wear index will also have more traction.
   You can make broad assessments that way, and identify the general
   characteristics of a tire, but you can't specifically compare tires of
   different brands with any real accuracy.  So in the above example, a
   Pirelli 200 might have more traction than a Goodyear 100.  Maybe, maybe
   not.
   More info here:
   http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=48
   Mike