BASED ON THE ALL CONDITION TREAD PATTERN OF THE CINDER MOUNTAIN BIKE TYRE&44; THE CYCLOCROSS SPECIFIC CINDERCROSS USES PANARACERS ZSG ULTIMA COMPOUND TO MAXIMUM EFFECT&44; HANDLING EVERYTHING FROM BOGGY GRASS FIELDS TO THE RAPID DESCENT DOWN PEN-Y-GENT. AVAILABLE IN 700 X 35C&44;FOLDING BEAD ONLY.PSI RANGE: 35-95WEIGHT: 350G