The Zaffiro Pro II is designed with deeper cuts in the middle tread and shallower cuts on the shoulder tread, giving a faster and safer tire when cornering.Aramid Endura 3-D compound treadPRB (Puncture-Resistant Belting)60 tpi nylon casingItem SpecificationsWeight240gPSI100-120PSITire BeadFoldingISO Diameter622 / road / 29"ISO Width23mmLabeled Size23Color Tread/SideBlack/BlackTire TypeClincherTire Diameter700cTire UseRoadDefined ColorBlack