### How to Use
- **TETRAFENDER M1**: First, check that your front fork width is between 115 - 145mm. Then, use the hook and loop straps to attach the fender to the fork. You can adjust the angle of the fender using the aluminum struts to ensure good tire coverage.
- **TETRAFENDER M2**: Make sure your seatstays width is within 95 - 125mm. Attach the fender to the seatstays with the hook and loop straps. Decide whether to use the short or long fender based on your riding conditions and adjust the fender length as needed.
### Notes
- Before installation, double - check the compatibility of your bike with the fenders, especially the fork width for M1 and seatstays width for M2.
- When adjusting the fenders, don't over - tighten the straps to avoid damaging the frame or the fenders.
### Maintenance
- After each ride, especially in muddy or wet conditions, clean the fenders. The highly polished underside makes it easy to wipe off dirt.
- Periodically check the hook and loop straps for wear and tear. If they start to lose their grip, consider replacing them.
- Store the fenders in a dry place when not in use to prevent damage from moisture.