Michelin dynamic classic road bike tyrethe perfect robust everyday companionfeaturessize 700 x 20c 23c 25c 28c bead tr diameter 622 tpi 30 min max pressure bar 60 8 0 60 8 0 50 7 0 40 60 inner tube a1 a1 a2 a2 weight 275g to 330g 20c to 28c buy michelin tyres from chain reaction cycles the worlds largest online bike store