Nothing but a speed trap through here. There is absolutely no reason for the limit to be 50mph through here and the majority of the time there aren't even workers out there on those roads. Most people who drive through continue driving in the 70s, if you were to drive 50 you will be cut off repeatedly and possibly hit.
Weeth, this story should answer your question about I/O K band from the Grapevine Police Motorcycles. They have Decatur Genesis Handheld radar guns mounted on their motorcycles.