I want to get some drag radials that will fit my 18" fanblades I understand that BF Goodrich is the only company makes a drag radial in 18". If there are any others let me know. But what size should I get? I was thinking 275 or 285.

 

18 is a big wheel for DRs... you won't have much sidewall. But, Nitto also makes 18" DRs, however they may be too wide for the fanblades... aren't they 8.5" wide??? Personally, I wouldn't go wider than a 275 on an 8.5" rim width.