Please suggest a Hitch Bike Rack Theft Protection Solution Recently I purchased hitch bike rack. This is my second bike rack. My first one was stolen when I left it installed on car (car parked on street).
The one which got stolen was a THULE bike rack. The new one I bought is Yakima. But I think they use same kind of locking mechanism, Details here. I do not trust these locks much. Previous one has a similar lock but got stolen.
Is there a way I can make it difficult to steal? Right now only this lock is a deterrent (and rack weight, its 50 pounds).
I could not find any product as such which addresses this problem.
I am fine with any solution(like securing the rack with car's frame with a strong  metal chain), as long as it makes a strong deterrent for a professional thief.
Please suggest a solution. Too see the product visit here https://yakima.com/products/fullswing .
As suggested in the comments, removing the rack is by far the most secure option.
The hitch rack pin can be replaced with a locking pin. Alternately if the end of the hitch is accessible and sticks out past the end of the hitch socket, a padlock can be installed.
A chain from the rack to a fitting on the car that prevents it from being removed is possible. This may require having a suitible securing point mounted on the car.
All these help protect the rack, but a determined thief will defeat them all. My hitch is bolted to the car with just 6 bolts. 10 minutes with the right size socket and/or spanner will easily have the whole thing off the car and on its way to a new home.