Roughly 3.8˝ on a 65mm rim. The tread is a series of pointy darts, vastly reducing steering drift over the Endomorph. Works well as a front, and also as a rear in lot of conditions from packed snow to loose gravel.
ETRTO: 559mm (fits rims 65-82mm wide)
Casing: 27tpi with wire bead; 120tpi with Kevlar bead