Thread: 195/50/15 as opposed to 205/50/15?
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Old Jan 30, 2003 | 06:47 PM
  #18  
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ur31337
Colby
 
Joined: Mar 2002
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From: Southeastern CT
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Right, but you're forgetting the math.

205mm * 50% = 102.50mm
195mm * 55% = 107.25mm

A 205/50/15 wheel diameter would be 9.5mm smaller, therefore reducing gearing slightly and throwing off the speedometer.
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