ClassicModern performance with classic stylePerfect for lightweight and classic bikesFirst production tyre to reach a lap speed of 100 mph at the Isle of Man TT in 1969. ASPECT RATIO-Aspect Ratio-CONSTRUCTION- (Bias)Construction- (Bias)FEATURESE-markedFeaturesE-MarkedLOAD/SPEED INDEX60HLoad/Speed-Index60HMounting PositionRearPOSITIONFront| RearPRODUCT NAMETirePositionFront, RearProduct NameTireRIM DIAMETER18Rim Diameter18SECTION WIDTH4.10SIDEWALLBlackwallSTYLEStreetSidewallBlackwallStyleStreetTIRE SIZE4.10-18TREAD PATTERN/MODELK81 TT100TUBE TYPETube TypeTire Size4.10-18Tread Pattern/ModelK81 TT100Tube TypeTube TypeUNITSEachUnitsEachVendor part number652940Width4.10