I thought my Sportmax Touring 120/70 and 160/70 were stock size too,until I read the factory tire sticker, and saw that its supposed to have a 110/50 and a 150/50.The rear is so tall,it looks like it belongs on a truck!
Oh well,they are bald as plucked chickens anyways. And in a day or two,my brandnew 120/60 and 160/60 Dunlop Qualifiers should arrive.