Zoom Q-5 25.4mm (1-1/8″ fork) to 28.6mm (1-1/8″ threadless stem)

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 1-1/8For installing threadless stems on a threaded forkQuill Insertion Diameter: 25.4mm for 1 1/8" ste