SEMI INTEGRATED

 Steel cup semi-integrated design Alloy top cap with Hollow bolt Allows for brake cable pass through Caged bearing 5/32` x 22A ED Black durable finish ZS44/28.6|ZS44/30 Black 28.6 44 30 9.4 - 1-1/8`

 7075 T-6 aluminum cups Compatible with tapered 1-1/8` to 1-1/2` steerer tubes, or straight 1-1/8` steerers with a conversion crown race (sold separately) Aluminum dual seal crown race protects lower bearing Carbon-friendy compression ring captured in top cover Stainless bearings feature Split-Lip seals for twice the protection of a typical cartridge bearing  ZS44/28.6|ZS56/40 Black 28.6 44 40 12 - 1-1/8 to 1.5` ...

 6061-T6 aluminum internally relieved Zero Stack cups and cover to reduce weight High-quality, low friction face seals on the crown races Dependable black oxide, sealed bearings 97g-120g ZS44/28.6|EC44/40 Black 120g 28.6 44/44 40 20 - 1-1/8` to 1.5`

 6061-T6 aluminum internally relieved Zero Stack cups and cover to reduce weight High-quality, low friction face seals on the crown races Dependable black oxide, sealed bearings 97g-120g ZS44/28.6|ZS56/40 Black 102g 28.6 44/56 40 40 - 1-1/8 to 1.5`

 6061-T6 aluminum internally relieved Zero Stack cups and cover to reduce weight High-quality, low friction face seals on the crown races Dependable black oxide, sealed bearings 97g-120g ZS44/28.6|ZS56/30 Black 124g 28.6 44/56 30 30 - 1-1/8 to 1.5`

 6061-T6 aluminum internally relieved Zero Stack cups and cover to reduce weight High-quality, low friction face seals on the crown races Dependable black oxide, sealed bearings 97g-120g ZS44/28.6|EC49/40 Black 112g 28.6 44/49 40 - 1-1/8 to 1.5`

 6061-T6 aluminum internally relieved Zero Stack cups and cover to reduce weight High-quality, low friction face seals on the crown races Dependable black oxide, sealed bearings 97g-120g ZS44/28.6|ZS44/30 Black 88g 28.6 44 30 19 - 1-1/8`

 A headset designed to bridge the gap between the 40-series and 110-series headsets 6061 T-6 Aluminum, Internally contoured and relieved to minimize weight and maximize strength Low-friction upper bearing seal completely seals cup from contaminants and is fully captured by the top cover with no loose parts Alloy Dual-Seal crown race provides excellent seal efficiency with low friction Premium, sealed stainless-steel Hellbender bearings Bright, dip anodized Black...

 A headset designed to bridge the gap between the 40-series and 110-series headsets 6061 T-6 Aluminum, Internally contoured and relieved to minimize weight and maximize strength Low-friction upper bearing seal completely seals cup from contaminants and is fully captured by the top cover with no loose parts Alloy Dual-Seal crown race provides excellent seal efficiency with low friction Premium, sealed stainless-steel Hellbender bearings Bright, dip anodized Black...

 Steel 5/32 ball bearing 130g ZS44/28.6|ZS44/30 Black 130g 28.6 44 30 14.5 - 1-1/8`

 Aluminum construction For tapered 50mm/57mm head tube 1-1/8 alloy internal cup with 36?/45? ACB sealed bearing upper 1.5 alloy external cup with 36?/45? ACB sealed 1.5 bearing lower 141g ZS44/28.6|EC49/40 Black 141g 28.6 44/50 40 30.3 - 1-1/8 to 1.5`

 Aluminum construction For tapered 50mm/57mm head tube 1.5 alloy external cup with 36?/45? ACB sealed 1.5 bearing lower EC49/40 Black 28.6 50 40 36?/45? 1.5`