This is a 1-1/8" threadless internal headset w/ 44mm cups and a 30mm Crown Race. It is a loose-ball headset. This headset will fit frames intended for Z-type (zero stack) internal headsets like those found on many GT, SE, DK, Kuwahara and other bikes. A 1-1/8" Star nut and top cap are included
Color: Black
Cup Size: 44mm
Crown Race: 30mm
Steerer: 1-1/8"
