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Author Topic:   How wide can I fit on an 8" wheel?
Hutch5375
Dirt Maniac

Total posts: 124
posted December 09, 2005 02:41 PM  
Our track changed tire rules for next year. How wide of a 70 series tire can I fit on an 8" rim without running into trouble?

oceanridge motorsports
Dirt Full Roller

Total posts: 46
posted December 09, 2005 04:50 PM  
I've run upto a 285 .

bobaluuu
Dirt Freak

Total posts: 487
posted December 10, 2005 06:30 PM  
"285" maybe they slipped another new tire in the mix but I've never seen one .
commonly available 2557015 fits fine on 8inches and so will a harder to find and more expensive 2657015 (came on older monteros)

Spi-nex
Dirt Forum Racer

Total posts: 79
posted December 11, 2005 11:18 AM  
I dunno bout you guys, but just for fun we stuck a sprint car right rear onto an 8'' rim. Looked weird but it held air just fine!

oceanridge motorsports
Dirt Full Roller

Total posts: 46
posted December 11, 2005 06:14 PM  
yep bob your right on , just went out and looked the tire is a 60 series . which doesn't really matter to much as too width . As I am sure you know , 285 is the tread width shoulder to shoulder in millimeters , and a seventy or a sixty is just the aspect ratio of the sidewall in relation to the tread width , ie. ,% . I would go just a tick more ,295 maybe , in a bias ply tire (racing tire). On a street radial I don't go over a 275 - 60 , the tread seems to bubble in the center. In a 70 , the only one we have are 255 's , and being from ga. I am sure you know we only have those for laborday at swainsboro !

redneck racing
Dirt Forum Champ
Total posts: 877
posted December 11, 2005 07:27 PM  
We ran 235 and 245 60,s on the 8in rim. Eddie

  

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