tire section width?

rod · 07-31-2013, 08:29 PM

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

Ed Wright · 07-31-2013, 08:52 PM

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.

magnumv8 · 07-31-2013, 09:07 PM

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

art leong · 08-01-2013, 12:29 AM

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.

ALMACK · 08-06-2013, 12:10 PM

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.

07-31-2013, 08:29 PM	#1
rod Member Join Date: Dec 2009 Location: Kingman, NW AZ. in the middle of the longest stretch of Route 66 Posts: 308 Likes: 0 Liked 17 Times in 13 Posts	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

07-31-2013, 08:52 PM	#2
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 389 Times in 168 Posts	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. __________________ Ed Wright 4156 SS/JA

07-31-2013, 09:07 PM	#3
magnumv8 Member Join Date: Feb 2009 Location: Coraopolis, Pa. Posts: 172 Likes: 0 Liked 0 Times in 0 Posts	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

08-01-2013, 12:29 AM	#4
art leong VIP Member Join Date: Dec 2001 Location: Richmond Hill, Georgia Posts: 2,003 Likes: 0 Liked 1 Time in 1 Post	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. __________________ Art Leong 2095 SS

08-06-2013, 12:10 PM	#5
ALMACK VIP Member Join Date: Jan 2009 Location: Bardstown, KY Posts: 1,928 Likes: 98 Liked 324 Times in 116 Posts	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. __________________ Alan Mackin Stock 3777/ SS 3377 P/SA & SS/PA Fox Thunderbird I/PS '95 Mustang GT