Built on the same concept as our Gravelking and Gravelking SK models, the EXT version incorporates the same technology on top of a specially designed tread tailored to work best in muddy and sloppy conditions. Better puncture resistance while retaining the superb balance of a light riding feel and grip. - Ideal for gravel and dirt, Mud/Loose condition model, better puncture resistance while retaining the superb balance of a light riding feel and grip - Available in Black Tread and Black or Brown Wall Colors - Folding (Aramid) Bead with ProTite Shield Plus Protection - Available in 700 C and a variety of widths - TLC in widths 33mm and larger