The Chris King 1 1/8" Inch \"No ThreadSet\" in the color Turquoise is a stylish and efficient headset cap that you could add to your bike. The cap is designed to fit the 1 1/8 inches steerer tube diameter. It is a new addition to the Yeti Turq SB and is very durable. The headset cap is perfect for cyclists who want to add some color to their bikes.