tire section width?
 

if you had one tire, with 10" tread and mounted it on a 10" rim, and then mounted the same tire on an 8" rim...would the section width be wider on the 8" rim than on the 10" rim?

thanks Rod in AZ

Re: tire section width?
 

It would appear to buldge, but I don't see how it would be wider.

I don't think you will see any gain doing that. My stuff has always been faster on wider wheels. Let us know what yours likes.

Re: tire section width?
 

when a tire manufacturer gives a "section" width dimension on a tire that is the measurement of the tire through the sidewalls on a "spec" size wheel...so the wheel width as it gets wider than that will actually make the section width dimension larger and the opposite on a narrower wheel....

D L Rambo STK 1300

Re: tire section width?
 

For my tiny tires (14 x 8 x 20) I have found (through multiple back to back to back tests) That a six inch wide wheel crosses the finish line 200 rpm's higher than an 8 inch wide wheel. It seems like the 8 inch wide wheel allows the tire to grow more.

Re: tire section width?
 

Overall width of the tire would be more with a wider wheel.

So, to answer the question, I would say the section width would de-crease with the 8 inch wheels.