Mobius 1S Action Camera Standaard Lens set (Lens A2)
[MAC-STDPACK]

This is a great camera for commuting. The detail it captures is amazing & this version has the 2 hour battery too (Cold weather does bring the time down, as with all devices using these types of battery) Wrap it in cling film to make it waterproof, and velcro it to your helmet. Honestly, you won't regret buying this, and this shop is a great place to get it too. I bought this one as a gift for my missus. You can see an example of the detail it picks up below. (Same camera type as the one I bought here)

https://www.youtube.com/watch?v=FYNLQ6eiRU0