wheel diameter

["Jason Kendall" <jasonk@widomaker.com>]

I got this from the GTI VR6 list, maybe helpful.


>>
>> bought a set of 16" TSW Hockenheims. I need to buy tires now. What's the
>> difference between 215 40's and 215 45's. Or should I go to a 225?
>
>
>Overall diameter = { [width] x [aspect ratio] x 2 } / 25.4 mm/in + wheel
>diameter
>
>215 x .40 x 2 / 25.4 + 16 = 22.77" overall diameter
>
>215 x .45 x 2 / 25.4 + 16 = 23.61" overall diameter
>
>Try to stay close to the OEM overall diameter for gearing and speedo
>accuracy.
>
>Like someone else said, the 225 are wider by 10mm { .39"}.
>
>Rubbing or not depends upon tire diameter, width, wheel offset, lowering or
>not, etc.

>For info on: how to subscribe & unsubscribe, the list's tech/how-to
>    library, etc.  see:   http://www.panix.com/~aqn/gti_vr6_list/
>


--
To unsubscribe, send "unsubscribe scirocco-l" to majordomo@scirocco.org.
If you experience other problems, email: scirocco-l-probs@scirocco.org