40 ZS44/28.6 / ZS56/40 Tapered Headset

40-Series Zero Stack headsets set the standard for performance, durability and value. Drawing from the premium 110-Series design, the 40-Series includes all the features necessary for a durable, lightweight, long-lasting headset.

FEATURES:

• Sealed ZN40 cartridge bearings
• 6000 series alloy cups and materials
• Steel crown race with integrated seals
• Interlok spacer compatible
• 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)

SPECS:

• Color:Black
• S.H.I.S. Stem Clamp Diameter:28.6 Threadless
• Crown Race:40
• S.H.I.S Lower:ZS56
• Bearing Type:Cartridge
• S.H.I.S Upper:ZS44
• Defined Color:Black
• Lower Stack Height:4
• Upper Stack Height:8
• Weight:89