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`