On Sun, 21 Dec 2008 20:23:10 -0800 (PST), buffalobill
wrote:

On Dec 21, 10:35Â*pm, wrote:
For example: Â*20x10-8. Â*What exactly do these numbers mean and do I
have to get the exact size that comes with my tractor or can I get a
tire that is not as wide? Â*Thanks

the same size.
see also similar previously answered question from january 2007 at:
http://groups.google.com/group/alt.h...c6fbc14097d630
further tire info:
http://en.wikipedia.org/wiki/Tire
A tire that is the same hight, but not as wide would be something
like 20X8 - 8
A taller tire could be 22X8 - 8