1. Material: Aluminum alloy + plastic 2. This tracker bike bracket is installed on the front fork downtube, providing a perfect hiding place for your Airtag and adding protection to your bike. (Not including the tracker) 3. Applicable to front forks with an upper outer diameter of 28.6mm, expansion range: 21.5mm-25.4mm, suitable for both carbon fiber front forks and mountain suspension forks 4. Stable and concealed installation, no signal shielding 5. CNC knurling process, T6 heat treatment to ensure overall hardness
