Originally Posted by
Homebrew01
Some racks have built in locks to prevent removing the bike or rack.
But anything can be stolen, it's just a matter of easy or difficult to steal.
I lock my bike inside my car.
Those built-in locks, such as the Thule, Saris, Kuat and similar racks are useless.
Your suggestion is the best, lock the bike inside the vehicle.
My Thule hitch rack was recently stolen right of the car, sans bike.
I now use a 1UP USA rack and I use enough chains and locks to put to shame any well equipped dungeon.