Is there a model for either of these tire sizes that you have in mind? Both sizes seem pretty unusual. I realize that Tire Rack doesn't have everything but I was curious and took a look
305/45/17 I only see one tire,
NITTO NT555RII but it looks like a good one. 100 tread wear...can you get two seasons out of them? :)
345/40/17 Tire Rack shows one tire here too....and only ONE in stock so that may be a bad sign about their availability.
TOYO PROXES TQ-- this is a drag tire anyway so maybe not suitable for driving around.
Very cool. For people looking for drag tires, it seems like there are generally more options. Personally, these wont work for me.