For my 26x1.75 (47x559) the studs stick out about 1mm above the tread. Less in the center where they have been fully seated from riding, very slightly more on the sides away from the main contact stripe. The rubber tread/lugs vary from about 2mm deep in the center to about 4mm at the far sides of the tire.
Tire width, mounted on a Mavis 238 rim, is 44mm / 1 3/4".
Rim width, inside of bead to inside of bead is 18mm.
Tire height, above rim, about 40mm.
They grab icey plowed roads nicely, and two winter marathon's roll much easier than the single Innova studded tire that I have.
Not so great in snow of more than a couple inches. I rode them through last winter in Boston.
Last edited by randomgear; 10-01-08 at 11:43 PM.
Reason: spelling, added tire size