BOND007

Have a friend with a 2002 civic si coupe ., looking for winter rims and tires. the question is she has 185 65r 15 on right now if she is changing to a 14 in rim would she go 185 70r 14 or 185 75r 14 pls let me know ...


Thanx in advance.....


btw don't want to affect the speedo

cee_mon

Dont worry about the speedo, worry on the price of the tires. Here a link to where you can check the difference in tire size.
Hope this helps
http://www.miata.net/garage/tirecalc.html

HAPPY

You would have to use a 175/60/14 if you did not want ot upset the speedo...

...but I tend to agree with the comment above. These are winter tires, get some that fit your budget.

BOND007

Thank you very much Gentlemen , my friend appreciates the help ...

imported_daquel

Neil, here's a quick calculation to figure out if changing the size effects your speedometer.

Take your stock size: 185/65/15

185 Multiply by 65% divided by 25.4 Multiply by 2 add the rim size 15 = 24.67

As long as you stay within plus or minus 3% it will not effect your speedo!

185/70/14 = 24.20
185/75/14 = 24.93

Stock size: 24.67 minus 3% = 23.93
Plus 3% = 25.41

Hope this helps!
Regards!

BOND007

Thanks Jamie

and this time you remebered my name