The DropSet 4 45x45 headset features a bearing designed from the ground up for the specific application of a drop in headset with an emphasis on reducing creaking. Additionally, King's patented GripLock design provides improved pre-load retention.

Specifications:

• Defined Color: Black
• S.H.I.S. Stem Clamp Diameter: 28.6 Threadless
• S.H.I.S Lower: IS42
• Bearing Type: Cartridge
• Crown Race: 30
• Color: Black
• S.H.I.S Upper: IS42