Holy crap, just seen the price for a couple of wee bits of plastic. Are there any sensibly priced alternatives out there?

You pay that much over the odds for a light and balk at £20 for a mount?

Exposure make a joystick bracket which fits a Gopro mount for about £7, pair this with an eBay Gopro mount (stuck to your helmet with sugru) and your sorted for £10-12. I think it is a better solution than the Exposure helmet mount.

well one is a high quality piece of engineering and the other is a 50 piece of plastic

Quite, Junky.

EDIT: And I didn’t pay that much anyway so knyerr knyerr :p