The Chris King NoThreadSet⢠Headset Bearing Cap crowns its namesake headset and incorporates the Chris King GripLock® retention design, which keeps the headset together. Bearing the clean, understated Sotto Voce design and available in 1â, 1 1/8â and 1 1/2â sizes, this is a genuine Chris King replacement part, so you know that it will fit corresponding headsets perfectly.