SEMI INTEGRATED

 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`

 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`

 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`

 External cup lower headset for 1.5` or tapered steerers 1.5in 36 degrees/ 45 degrees ACB  EC44/39.78 Black 50 40 13.4 36?/45? 1.5`

 Cane Creek compatible 89g ZS44/28.6|ZS44/30 Black 89g 28.6 34 30 12.5 - 1-1/8`

 Cane Creek compatible 89g ZS44/28.6 Black 28.6 34 30 13.1 36?/45? 1-1/8`

 Highly polished sealed angular contact premium bearings ensure smooth operation CNC machined AL6061 top cover is sealed to keep moisture and grit away from the bearings CNC machined AL7075 crown race protects the lower bearings and fork AL6061 top cap, forged stainless steel bolt, and star nut ZS44/28.6|ZS44/30 Black 115g 28.6mm 44mm/44mm 30mm 13mm Top/5mm Bottom 45?/45? 1-1/8` ...

 Highly polished sealed angular contact premium bearings ensure smooth operation CNC machined AL6061 top cover is sealed to keep moisture and grit away from the bearings CNC machined AL7075 crown race protects the lower bearings and fork AL6061 top cap, forged stainless steel bolt, and star nut ZS44/28.6|ZS56/40 Black 135g 28.6mm 44mm/56mm 40mm 13mm Top/3mm Bottom 45?/45? 1-1/8` to 1.5` ...

 Highly polished sealed angular contact premium bearings ensure smooth operation CNC machined AL6061 top cover is sealed to keep moisture and grit away from the bearings CNC machined AL7075 crown race protects the lower bearings and fork AL6061 top cap, forged stainless steel bolt, and star nut ZS44/28.6|EC44/40 Black 28.6mm 44mm/44mm 40mm 13mm Top/13.7mm Bottom 45?/45? 1-1/8` to 1.5` ...