Just bought a bike, and I want to protect it when its in the bed. I have a 2000 Tacoma, and I was going to get a Thule Insta-Gator so I could lock the bike to that, and then the rack to the truck. Well unfortunately for me, the tailgate does not have a lock. So I either have to find a way to disengage the handle and lock it somewhat permanently or find another option.

What are some good options to look into that will provide security. Both from falling and from theft.

I don't plan on leaving the bike in there unattended at all, but if I ever have to run in a store or something I'd like some peace of mind.

Thanks, I appreciate the help.