Default Anyone use Moto-X on a motorbike

I upgraded to the Moto-X for the touchless controls as I commute to work and back on my motorbike and I was really unsatisfied with alternatives floating around to simulate touchless control.

Now when I am in my car and using my bluetooth headset the voice control works just fine, I can navigate, call and send quick messages no problem

But on my bike I use a Viper RSv-131 helmet which has bluetooth built in and I listen to local radio or music whilst I'm riding but my Moto-X does not respond when I cay Ok Google now or when I press the button on my helmet either I can answer incoming calls fine but thats it.

Does anyone else use a Moto-X on a motorcycle/motorbike or even a regular bicycle with bluetooth and do you have similar problems?