Panaracer pasela pt road tyrethe pasela pt is available in a wide range of sizes pt belt offers the same great puncture protection that pt shield offers the difference is that whereas pt shield is bead to bead protection pt belted is placed only under the tread offering puncture protection while shaving off grams features size 700 x 23c bead steel etrto 23 622 tpi 66 weight 300g size 700 x 25c bead steel etrto 25 622 tpi 66 weight 320g size 700 x 28c bead steel etrto 28 622 tpi