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