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 44/49 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`
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`
For tapered 50mm/57mm OD head tube For 1.5` headtube and 1-1/8` steerer 1-1/8 alloy internal cup with 36??/45?? ACB sealed bearing upper 1.5 cromo external cup with caged ball bearing lower 188g ZS44/28.6|EC49/30 Black 188g 28.6 44/50 30 28.6 - 1.5 to 1-1/8`
Fits tapered headtube 1-1/8` top-1.5` bottom 36??/45?? ACB sealed cartridge bearings ZS56/40 Black 28.6 62 39.8 36??/45?? 1.5`