Profile Design Front WheelsProprietary carbon fiber 52mm section carbon clincher rim with aluminum bead and braking surfaceProprietary precision machined alloy hubs with custom depth flanges for extra stiffnessSealed cartridge bearingsHand-built assemblyItem SpecificationsColorBlackHub Drilling20spokesHub/Brake CompatibilityRim BrakeRim Depth52mmValvePrestaISO Diameter622 / road / 29"Valve LengthLong 56-74mmWheel Size700cTire TypeClincherFront Wheel TypeRoadFront Hub Spacing100mmFront Axle Type9x1Spoke InfoSapim CX SprintRimProfile AltairSkewer IncludedYesRim MaterialAlloy,CarbonDefined ColorBlack