Philip J Ethier writes:
> I have been getting a lot of request via private Email to compare tire sizes
> for folks. I figured I would just let everyone know how I do it. I will
>still
> be happy to answer questions about tire sizes, but you can have a lot of fun
> doing this yourself with a spreadsheet.
Hey, spreadsheet fun! I like it! I happened to have a tire program
from the net some time ago by Mark Sirota. I uploaded this C program
to hoosier.utah.edu called tires.c. It takes a tire size on the
command line and will compare tire sizes for you. Here's an example
of the output I was using to check on tire sizes for a TR6.
% tire 185/78R15 215/65R15 225/65R15 205/70R15 215/70R15 185/75R15 195/75R15
Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
185/78-15 5.7in 13.2in 26.4in 82.8in 765 0.0%
215/65-15 5.5in 13.0in 26.0in 81.7in 776 -1.4%
225/65-15 5.8in 13.3in 26.5in 83.3in 761 0.6%
205/70-15 5.6in 13.1in 26.3in 82.6in 767 -0.2%
215/70-15 5.9in 13.4in 26.9in 84.4in 751 1.9%
185/75-15 5.5in 13.0in 25.9in 81.4in 778 -1.7%
195/75-15 5.8in 13.3in 26.5in 83.3in 761 0.6%
The first tire is a "stock" tire size for a TR6. It then compares
the rest of the tires to that size. Enjoy!
---
No matter where you are, there you go.
Scott Paisley paisley@cme.nist.gov ..!uunet!cme-durer!paisley
|