Versatile and confidence inspiring, the Gravdal securely navigates through harsh winter conditions with concave carbide studs for added traction in icy conditions.240 concave carbide aluminum studs provide traction in the iciest conditionsReflective strip on sidewall makes you more visible when riding in low-light conditionsFits most bikes with cantilever or disc brakesTubeless-ready60 tpiWe design 45NRTH tires for extreme winter cycling applications. We do not recommend this product be used with power assist bikes as the additional torque and system weight can lead to pre-mature casing wear and stud loss.Always check with your rim manufacturer to verify rim & tire compatibility before assembly or useSiping creates a more conforming lug for added tractionItem SpecificationsColorBlackDefined ColorBlackFlat ProtectionTread and SidewallISO Diameter622 / Road / 29"ISO Width (mm)45Labeled Size700 x 45PSI65Tire BeadFoldingTire Diameter700cTire Intended UseWinter-StuddedTire TypeTubeless Ready ClincherTPI60Weight841 45NRTH Gravdal Tire Tires UPC: 708752381384