I got my Nittos NT 555's last year from discounttiredirect.com, and have been looking for the same tire in the 555R. The size of the tires I'm running now is 255/45r18's, and I haven't been able to find them in the 555Rs.

Does anyone know if they exist? If so, where could I pick up a set? I can't go any wider since the SSR GT-1 integrals I'm running are only 7.5" wide, so a 255 is really as wide as I can go. Any help/advice would be much appreciated! Thanks!

(Also, FWIW I'm really looking to stay with these rims)

 

They don't list that size on their site. The thinnest 18" tire they list is a 285.

http://www.nittotire.com/#index.tire.nt555r.sizes

 

Ahhh ok, thanks. That sucks! Looks like I'm gonna have to find new rims if I want to run those tires.

Any other tires you'd suggest that'll be decently sticky for the track but I can still drive around with on my 18's? I do plan on picking up a pair of MT ET streets, but those will be on factory FD rims....