Zoom Q-2 & Q-5 are cold forged and allow a 23mm height adjustment.
Cold-forged aluminum 23mm height adjustmentSteerer Clamp OD 25.4mm for 1" 28.6mm for 1-1/8"For installing threadless stems on a threaded forkQuill Insertion Diameter: 25.4mm for 1 1/8" stems and 22.2 for 1" stems
| Quill Insertion Diameter |
1" |