Those look like awesome tires! I searched and didn't find any listed on my favorite tire websites: tireteam.com or tirerack.com Hope they come in stock soon.
The tires are in Japan and EU, gas is double the cost over the pond lol, contact Bridgestone, I did! Bridgestone discontinued the ecopia ep100 and its way better than the ep422
I am still holding out for market distribution of the airless tire...............bridgestone/firestone/micheln/goodyear have prototypes just nothing on automotive market however some are on construction equipment......
The Bridgestone 001s is now available in 205/55/16. Previously only available in 195/65/15 for the gen3 prius in UK/EU. The 205/55/16 will fit the gen2 Prius as all UK/EU versions come with 16 inch wheels the same as the US touring version. From what I understand there are no plans to release this tyre to the US market at the moment. John (Britprius)
That's too bad, they looked like really good tires. I guess I'll have to stick to my 205/60R15 General Altimax HP - I can get them for $77 / tire from tireteam.com TireTeam - Catalog
I have just been checking the information given for the EP001s against the Bridgestone EP150 tyre. This tyre "the EP150" was previously the lowest rolling resistance tyre made by Bridgestone rated (B) for rolling resistance and (B) for wet grip in the relevant sizes "Bridgestone's own published figures" these are near top marks compared with other manufacturers best efforts. To get a 16% improvement on those figures is quite remarkable. John (Britprius)