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View Full Version : My Tire Size


Hans
06-03-2007, 10:45 PM
The tires that I currently have on my car are P185/80 R13. The stock tire size is P185/70 R13. I know that this won't throw off my speedometer that much, but I was wondering by how much it might be thrown off?
MessyHonda
06-03-2007, 11:51 PM
when your speedo reads 60 you are going 63.8
Hans
06-04-2007, 07:06 PM
okay thanks messy. I have seen a tire size and speed calculator somewhere online before, but I couldn't find it again.
Bones
06-04-2007, 07:10 PM
http://www.miata.net/garage/tirecalc.html
ghettogeddy
06-04-2007, 07:13 PM
ya if im at 60 im doing 58.7 that means im never speeding lol
Hans
06-04-2007, 07:25 PM
okay sweet thanks for the link.
haha never speeding :rolleyes:
AZmike
06-08-2007, 06:28 PM
ya if im at 60 im doing 58.7 that means im never speeding lol

You've got it mixed up. MessyHonda has listed the correct numbers. A larger than stock tire will give you a speedometer that reads low.
Hans
06-08-2007, 09:48 PM
A larger tire will make the car travel farther with the same ammount of revolutions, thus the car goes faster. I just wasn't how sure just how much faster I was going.
2ndGenGuy
06-09-2007, 12:25 AM
You've got it mixed up. MessyHonda has listed the correct numbers. A larger than stock tire will give you a speedometer that reads low.

I think Geddy was referring to his tires. I'm pretty sure his are smaller than stock.
MessyHonda
06-09-2007, 11:15 PM
I think Geddy was referring to his tires. I'm pretty sure his are smaller than stock.



yup....

i tried testing my speed.....we have a school zone with a digital speed sensor thing...so when you are going over 25mph its going to light up red....i tried to use it...but i didn't want to get in trouble...on my speedo i was going 25 and the thing did not blink or anything