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Peryn · 05-06-2004, 11:14 AM

BadNick pretty much nailed it, not much else to say. Your speed difference will be a constant pecentage.

Here is a really cool site i googled real quick : http://www.csgnetwork.com/tireinfo4calc.html

real quick rundown of the info

Old tire circumf. : 76.07 in
New tire circum. : 73.69 in
Difference in cirfcum. with new tires : -3.12% --> You are actually moving to a smaller tire

That means that your speedo will actually be off by 3% - reading faster than your actually going. So with the new tires, you;ll hafta read 67mph on the speedo to actually be going 65mph. So dont mention your change in tire size if your trying to fight a ticket

05-06-2004, 11:14 AM	#8 (permalink)
Peryn Junkie Location: San Diego, CA.	BadNick pretty much nailed it, not much else to say. Your speed difference will be a constant pecentage. Here is a really cool site i googled real quick : http://www.csgnetwork.com/tireinfo4calc.html real quick rundown of the info Old tire circumf. : 76.07 in New tire circum. : 73.69 in Difference in cirfcum. with new tires : -3.12% --> You are actually moving to a smaller tire That means that your speedo will actually be off by 3% - reading faster than your actually going. So with the new tires, you;ll hafta read 67mph on the speedo to actually be going 65mph. So dont mention your change in tire size if your trying to fight a ticket __________________ Dont cry kid, It's not your fault you suck.