4 1 1 4" HSS Alloy Integrated Headset

Compatible with innovative Deda H.S.S. system (Headset Stack Spacers) that allows to mount spacers directly over the headtube.Key Features:Headset Model: integrated 1 1/8-1 1/4Bearings Type: angular contact bearing; stainless steelBearings Size: upper 41.8x30.5x8mm; lower 46.9x34.1x7mmContact angle: 45deg x 45degHeadtube: tapered 46.0mm upper; 52.0mm lowerFork steerer: tapered 1 1/8 - 1 1/4Top cover: 46mm; aluminium (IN-4A)Crown race: 33.0mm aluminiumStack height: 9.6mm (8.8 + 0.8)Weight: 73gInfo: Compatible with headset stack spacer system Deda H.S.S