# The boys screwed the pooch

**URL:** <https://community.cartalk.com/t/the-boys-screwed-the-pooch/17994>\
**Category:** The Show\
**Created:** [August 11, 2008, 7:38am UTC](https://community.cartalk.com/t/the-boys-screwed-the-pooch/17994 "2008-08-11T07:38:48Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![mike4947](https://avatars.discourse-cdn.com/v4/letter/m/d78d45/32.png) [@mike4947](https://community.cartalk.com/u/mike4947)\
**Post date:** [August 11, 2008, 7:38am UTC](https://community.cartalk.com/t/the-boys-screwed-the-pooch/17994/1 "2008-08-11T07:38:48Z")

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In today’s Sunday paper your column on tires for a VW made a major mistake.  
  
 You stated that the aspex ration set the tire diameter and a 175, 185, and 195 section all with an aspect ration of 75 would have the same outer diameter.  
  
 WRONG the section height is a factor of the section width times the aspect ration.  
  
 So the 175 x .75 has a height of 131.25, the 185 a height of 138.75 and the 195 a height of 146.25.  
  
 It is common to drop aspect ratio when going to a wider section tire to maintain the same outer diameter.