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Discussion Starter #1
Does Toyota change the speedo for these different sized tires? It looks like a 3.6% difference.
 

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It's 215/70R16 vs 235/60R16, so that's a 2.7% difference. Based on past experience I would suspect that they don't calibrate the speedo for the differently-sized tires. At an indicated 60 mph the speedo would only be out 1.6 mph so it's probably not worth it.
 
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Discussion Starter #3
Makes me wonder which one is correct. Or did they split the difference between the two :?
 
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I have the standard 215 / 60s and also a portable satnav. The speed readout on the sat nav at 60-70 mph is about 1 mph less than the speedo reading.

It gives me an excuse to go 1mph faster :)
 
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