The Racing Ralph is the optimal competition tire. The star of the MTB scene is also the optimum choice for cyclocross competition: Evo-carcass and triple compound tread for added grip and speed off-road.Handmade tubularPaceStar compound=extremely fast XC compound(Easy rolling base layer), fast center(medium) and grippy shoulders(medium soft)107tpiDesigned for optimal grip and high speedIncorporates Speedgrip compound and racing-specific tread characteristics67 tpiItem SpecificationsWeight540gPSI30-70PSITire BeadFoldingISO Diameter559 / 26" mtnISO Width51mmLabeled Size2Color Tread/SideBlackTire TypeTubularTire Diameter26"Tire UseMountainDefined ColorBlack