in-4 1 1/4" hss alloy integrated headset

IN -4 Integrated headset for 1 1/8" - 1 1/4" tapered road or MTB forks with superior ACB stainless steel bearings. Available in alloy or carbon top cap. Compatible with innovative Deda H.S.S. system (Headset Stack Spacers) that allows to mount spacers directly over the headtube. Additional Info * Headset Model: integrated 1 1/8"-1 1/4" * Bearings Type: angular contact bearing; stainless steel * Bearings Size: upper 41.8x30.5x8mm; lower 46.9x34.1x7mm * Contact angle: 45deg x 45deg * Headtube: tapered 46.0mm upper; 52.0mm lower * Fork steerer: tapered 1 1/8" - 1 1/4" * Top cover: 46mm; aluminium (IN-4A) * Crown race: 33.0mm aluminium * Stack height: 9.6mm (8.8 + 0.8) * Weight: 73g Info: Compatible with headset stack spacer system Deda H.S.S