I run mine at 960 rather than the highest settings, gives me 4 hours 22 minutes on a 32GB card.
I also got their handlebar/seat post mount and I like that so far mounted to the cross brace on my 'bars.
And I find engine/exhaust noise is better with the open back but if you have any rattles nearby the camera they will be ea
One thing I still need to do yet is either set up a way of charging on the go or getting some spare batteries to take with me. I get about 3 hours out of a battery which means 1 hour 22 minutes of recording time wasted on one card.