Now I don't know what STG is doing these tires for but here is Cycle Sector's price $250 a set for the new Power Pure or Road 2CTs, $230 for Pilot Power 2CTs, or $190 for Pilot Powers. They also have a deal on Pilot Power 2CTs for $230 if you get a 120 front and 190/55 rear.
http://www.cyclesector.com/MICHELIN_...-powerpure.htm