Trying to mount my Sena 20S onto my Schubert C3 Pro helmet, I found out that this cannot be done with the standard clamp that comes with the Sena. The only alternatives seem to be to use the adhesive mounting or to modify the helmet (both of which I would like to avoid).

It shouldn't be too hard to develop various types/sizes of inner helmet clamp halves in order to enable mounting on most of the helmets that are used by people who have enough money to spend on a bike comms system???!!!