• 1-1/8'', 36°/45° ACB
  
• For 55 mm OD head tube
  
• For 1.5'' head tube and 1-1/8'' steerer
  
• Alloy top cover
  
• CNC-machined alloy cups
  
• Angular contact bearing (blue seal)
  
• Stack height: 7.1 mm + 3.5 mm = 10.6 mm
  
• Weight: 140 g

Attributes

Bearing Grade	ACB Sealed
Headset Position	Complete
Lower Cup	49mm
Material	Aluminum
Crown Race Diameter	30mm
S.H.I.S.	ZS49/28.6 | ZS49/30
Primary Color	Black
Upper Cup	49mm
SHIS Upper	ZS49/28.6
SHIS Lower	ZS49/30
Steerer Tube	1-1/8''
Headset Type	ZeroStack
Headset Weight	140g
Misc	36°/45° ACB (blue seal)
Stack Height	10.6