Manual for exchange of the base plate for Helmet Mounts Motorbike, Bicycle and Sport Pro
1. Unscrew the four suction cups counterclockwise.
2. Remove broken helmet holder and replace with a new one.
3. Turn base plate and insert suction cup.
4. Insert the suction cups one by one and tightem them clockwise.
5. Check to see if base helmet holder is fixed. As may be necessary, tighten individual suction cups.
6. Turn base plate. Now your helmet holder is ready for use again.