FSA Orbit X 1-1/8" Threadless Headset Black MFPN=11.4018.111.005 }Wheels Manufacturing BSA Bottom Bracket

}Wheels Manufacturing BSA Bottom Bracket - Shimano Hollowtech II Spindle ABEC 3 Purple

Aluminum 6061 construction

and the liquid waxable sidewall made of base material offers optimal gliding properties through reduced friction

Precision CNC machined AL7075/T6 alloy

FSA Orbit X 1-1/8" Threadless Headset Black MFPN=11.4018.111.005 }Wheels Manufacturing BSA Bottom Bracket36 36 ACB (black seal) bearings Forged and CNC machined alloy cups Stack height: 31. 5mm TECH SPECS SHIS Upper EC34 28. 6 Crown Race Diameter 30mm Lower Cup 34mm Bearing Grade ACB Sealed Headset Type External Threadless Misc 36 36 ACB (black seal) Steerer Tube 1 1 8 Upper Cup 34mm Primary Color Black Headset Position Complete Headset Weight 95g Material Aluminum Stack Height 31. 5 S. H. I. S. EC34 28. 6 EC34 30 SHIS Lower EC34 30