If you use the tool included in the package, we recommend that you mount the light before the magnets. It is easier for you to adjust the magnet, than it is to adjust the light. If you, however, should experience that the included tool does not work properly you can use a 2.5 mm allen key or get in contact with our support team.
The wire is being tightened when rotating the key clockwise, however, you can also extend the wire on the front light by rotating the key in the opposite direction. This is especially good to know if your bikes fork diameter is over the average.
Mounting guides in different languages can be found here but we recommend watching this video too: