Pneu PIRELLI SCORPION RACE XC RC ProWall 29x2.40 Tubeless Ready Souple Noir Beige Retro No Lindlau it provides better protection in 20De 20plus it provides better protection in the event of an oblique impact by dispersing forces through an inner membrane independent of the EPS shell Sizes Chest circumference (in cm) Waist circumference (in cm) Hip Circumference (in cm) Size (in cm) XS 88 91 70 74 89 95 165 178 S 92 95 75 80 94 100 173 188 M 96 100 81 86 99 106 178 190 L 101 106 87 92 105 110 181 195 XL 107 113 93 99 109 116 >185 XXL 114 121 100 106 115 121 >185 Measure your chest circumference at the widest point of your torso The ProWALL casing features sidewall protection that improves puncture resistance and handling at low pressure this tyre offers maximum safety without compromising on speed