If it is a 622ISO based tire, Surly will have pulled a coup of (pardon the pun) massive proportions. It has been well documented that 29"er tires could not be made larger than 2.4" wide-2.5" wide due to the physical limitations of the tire molding machines used in Asia.But the tires look less fat, like a 3.0, maybe. 650b x 3.0?
I know what it is--been riding it a month now.I heard mention of a soft tail. Kind of the Surly mindset approach to FS, to counter Salsa's more tech heavy offering.