TwinTurbo.NET: Nissan 300ZX forum - Doing a little math, I calculated that the 40s
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Subject Doing a little math, I calculated that the 40s
     
Posted by JMartz on December 04, 2011 at 9:41 AM
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In Reply To I run BFG's in that size posted by Joe@ZSpeedperformance on December 03, 2011 at 06:39 PM
     
Message are 1.08 inches larger in diameter or 1/2 inch taller than the 35s. You are correct about the rears being smaller. The sidewall on a 245/40/18 is 98mm while a 275/35/18 has a sidewall of 96.25. Only a 1.75mm difference but indeed a bit smaller, and it shows. Like the appearance of you 275/40s...

     
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