- Cold-forged aluminum, 23mm height adjustment
- Quill Insertion Diameter: 25.4mm for 1 1/8" stems and 22.2 for 1" stems
- Steerer Clamp OD 25.4mm, for 1", 28.6mm for 1-1/8"
- For installing threadless stems on a threaded fork
- 132mm to bottom of top cap
136mm to top of top ca, . Zoom Q-2 & Q-5 are cold forged and allow a 23mm height adjustment.