Marathon Supreme incorporates an HD Speed Guard and RoadStar Triple Compound with a LiteSkin sidewall, all in a folding tire.HD Speed Guard provides the highest level of puncture protection in the Marathon lineRoadStar Triple Compound provides security on wet, slippery roads as well as excellent rolling characteristicsLiteSkin tires have light and thin sidewalls that save weight and reduce rolling resistanceItem SpecificationsWeight310gPSI55-100PSITire BeadFoldingISO Diameter622 / road / 29"ISO Width28mmLabeled Size28Color Tread/SideBlackTire TypeClincherTire Diameter700cIntended UseRoadDefined ColorBlack