Flying bike tells you how to install the back seat of mountain bike
1. Align the shelf with the angle of the seat bar and fasten it for quick removal.
2. Turn the quick release screw.
3. Tighten when turning to feel slight resistance.
4. Install the support with wrench and inner hexagon.
5. Adjust the support length with the hexagon socket.
6. Place the gasket in the lower support clamp.
7. Fix the screws and adjust the quick release.
8. Fix both sides in sequence with tools.