Durability and resistance
Salt snow dirt
No problem, the lock is quality tested by TüV Austria. The locking cylinder is bottomless enabling rinsing or high pressure air cleaning of dust or foreign particles.
Rimgard is made from high resistant 6082 aluminum alloy that is hard to drill, saw or break as it becomes tough when worked. The amount fore needed will make so much noice and most likely destroy the rim too, making the theft pointless.
Picking the lock
The time a thief has to pick four Rimgard locks, even for a pro with special skill and tools, is simply not enough. In bad lighting, on your knees and under stress - there are a lot easier targets around.