Quill Stem Height Extender Adapter

This aluminum alloy quill stem extender adapter is built to increase handlebar height on bicycles with threaded fork steerer tubes. Measuring exactly 160mm in length, it enables fine-tuned rider positioning for enhanced comfort and control. The polished anodized finish resists corrosion and complements classic bike aesthetics. Its internal expansion system engages securely inside the quill stem when the central bolt is tightened — delivering stable, vibration-dampened performance. Designed for straightforward installation, it works with existing threaded headsets and requires no special tools beyond standard Allen keys.