Morning All I have a detachable towbar mounted on my vehicle, with the safety pin that just pulls out.(Circled in Red) I am wondering if anyone has come accross a safety pin that can somehow be locked to the towbar, when my bike rack is attached, its obviously very easy for a "skelm" to just pull out the pin and remove the whole towbar including my bike rack and bikes, I have searched all over but cannot find any local solution for this, I have attached the picture of the lock mechanism I am looking for, but cannot find any local stockists of these - any help would be appreciated. Thanks