Aheadset ZS Zero Stack Internal

The Aheadset ZS Zero Stack Internal 1-1/8 features cups and cones that work together with a simple O-ring to seal out contaminants and increase the headset's life expectancy.
Features:18 unique parts in the Aheadset system can be configured to make 11 unique headset assemblies, including a ZeroStack threaded 1-1/8"
Features 1-1/8" high-complement caged ball bearings
The cone and crown race are the same part creating mirror top and bottom cup assemblies
The compression ring is integrated into the top cover creating one simple, light part
LubeAlarm seals audibly alert the rider when more grease is needed in the headset, extending headset life
Aheadset Configuration Chart
Steerer Tube: 1-1/8" Threadless
Headset Type: Internal/44.0mm OD cup/1-1/8" (Zero Stack)
S.H.I.S Upper: ZS44
S.H.I.S. Clamp Diameter: 28.6
S.H.I.S Lower: ZS44
Crown Race: 30.0
Defined Color: Black
Color: Black
Stack Height: 14.5 mm
Bearing Type: 5/32 Ball
Material: Steel
Weight: 130.0 g
Shipping Weight: 1.0 lb.
Features:
Shipping Weight: 1.0 lb.



















