Integrated headset for 1" 1/8 - 1.5" tapered road or MTB forks with superior ACB stainless steel bearings. Compatible with innovative Deda H.S.S. system (Headset Stack Spacers) that allows you to mount spacers directly over the headtube. Available with alloy or carbon top cover. Additional Info * Headset Model: integrated 1 1/8" - 1 1/2" * Bearings Type: angular contact bearing; stainless steel * Bearings Size: upper 41.8x30.5x8mm; lower 51,9x40x8mm * Contact angle: 45deg x 45deg * Headtube: tapered 46.0mm upper; 56.0mm lower * Fork steerer: tapered 1 1/8" - 1 1/2" * Top cover: 46mm; aluminium (IN-5A) o carbon (IN-5C) * Crown race: 39.8mm aluminium * Stack height: 9.6mm (8.8 + 0.8) * Weight: 76g Info: Compatible with headset stack spacers system Deda H.S.S