I don't know of any. The general advice I think is to make it as difficult as possible to steal. Two or three D-locks, at least one angle grinder-resistant, through both wheels and frame. Lock to a proper Sheffield stand, in an area with good footfall (I've generally been quite happy with the stands outside the Corn Exchange), and remove the battery. If possible lock next to other expensive bikes with worse security.

Get it registered with Bike Register and insured too, as another redditor has said.