I have listed these on Ebay...

280/650R18
http://cgi.ebay.com/ebaymotors/ws/eBayISAP...LCA:MOTORS:1123

320/650R18
http://cgi.ebay.com/ebaymotors/ws/eBayISAP...=STRK:MESELX:IT

They are brand NEW, never mounted

What do you guys think about squeezing the 280's on a 9.5" wide wheel? The Yokohama site recommends an 11" width but they seem to be fairly conservative with their recommendations. These would be for NASA time trials so I'm hoping the soft compound would work since the sessions are fairly short and hey the price is right compared to new Hoosiers.

Im currently running a 315 Nitto 555R rear tire on a 9.5" rim.. The nittos do run a little narrow, especially in the 555R tires, but I see no issues running a 280 on a 9.5...