1-1/8` to 1.5`

Transform the head angle of your mountain bike with ease, with up to six offset angle adjustmentsSteeper or slacker adjustments from 0.5 to 1.5 degrees, make dialing in the perfect geometry to attack the trail a breeze7075 T-6 Aluminum, Internally contoured and relieved to minimize weight and maximize strengthLow-friction upper bearing seal completely seals cup from contaminants and is fully captured by the top cover with no loose partsInterlok spacer compatibleZS44/28.6|EC56/40Black28.644/5640...

 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`

 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...

 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`

 Fits tapered headtube 1-1/8` top-1.5` bottom 36?/45? ACB sealed cartridge bearings ZS44/28.6|ZS56/40 Black 139g 28.6 50/62 39.8 19.8 - 1-1/8 to 1.5`