You need for installation variant D:
Narrow helmet adapter
TILSBERK Head-Up Display
TILSBERK Head-Up Display App
Sugru moldable all-purpose adhesive
For which helmets is installation variant D suitable?
Installation variant D is used for helmets with sun visors that have a complex geometry on the mounting surface.
Note 1 of 2
Information about Sugru
Adhesive properties: Sugru hardly needs to be processed to develop adhesive properties. The adhesive effect develops through the reaction of the material with the ambient air. After opening the packaging, you have 30 minutes to work with Sugru. Sugru needs 24 to 48 hours to fully cure and develop its maximum holding power. The exact duration depends on the thickness of the layer and the temperature and humidity of the ambient air.
Skin contact: Sugru is not irritating to the skin. If allergic reactions occur on skin contact, rinse the skin with warm water. Follow the manufacturer's instructions.
Note 2 of 2
Before installation
To ensure secure attachment, all adhesive surfaces must be clean, dry and free of dust and grease. Therefore, please clean all smooth surfaces thoroughly with an alcohol-based cleaner such as white spirit or rubbing alcohol before mounting. Adhesion is better on surfaces made of fabric - however, these surfaces should also be cleaned.
Once you have read all the instructions and placed the required parts in front of you, you can get started.