Arsenik111

Hi, I just had my factory 245/75/16 tires switched with 265/75/16 tires. I was just wondering if this really throws off the speedometer, odometer and or tachometer and if so how much? thanx

2000CAYukon

Your speedo will be 3.9% low. Odometer will also be off by 3.9%. Tach will not change since that is engine speed.

See http://miata.net/garage/tirecalc.html

//2000CAYukon

amac209

you can get a dealer to recalibrate the spedo with a tech 2. some aftermarket programers can do the same thing

kenny-1907

I have 255/85/16's on my truck and the dealer said they could only recalibrate for them if they were an option on the truck.

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