I used to take the big-ass heavy Almax in a small tail back. If it was a friendly carpark I was leaving it in, then I would leave it there overnight chained to something out of the way where it couldn’t bother anyone.
Golden rules:
- Never leave a nice bike on the road
- Never leave a nice bike in view, hide it if you can
- Cover it, chain it to something immobile, disc lock it
- Have a man with a gun guard it
Last one is slightly harder to come by. Though you could try asking @Panagiotis if his tank (Rideout - evening Brighton run Thursday 6th August) is available.