Earlier this year, before we went on our annual European tour, I fitted an Innovv K7 front & rear camera on the bike.
I'd previously used a contour helmet cam to record clips on our trips, but the capacity and the battery life really limit what you can record. And of course you have to remember to switch it on and off.

I used a 512GB SD card in the recording unit, and this basically stored about 7 days worth of riding, captured from both cameras, in 1 minute clips, before it then starts to over write the first clips and then loops on doing this.

I've got to say that this was a fantastic decision to fit this, and I got so many memories of great bits of road and scenery we rode on, and those 1 minute clips were perfect for sharing in messages or social media. And the quality was fantastic, with great sound too (I put the mic under the seat, so it got the engine noise rather than the wind).

If anyone is thinking of buying one, I'd say do it for sure, and I'm definitely happy to recommend this one.
Might make a great Christmas present for someone too.

Umm interesting idea, I use a Ghost XL but that of course is a stand alone device...and not a permanent fitting....will note this for future reference.