Panaracer GravelKing All Condition Knobby 700x33 Tubeless TireAll condition tread features vertical knobs strategically placed in the center and shoulder pairs with square outer knobs. Incorporates the same technology as other GravelKing tires on top of a specially designed tread tailored to work well in all conditions including loose and slop TECH SPECS Type Tubeless Size 700x33 ISO 622 Bead TBLS Fold Belted Tread Sidewall Color Bk Blk PSI 60 Weight (Grams) TPI 120 Durometer Features Reflective Sidewall No