Totally newb, but is the cable just used for locking up two helmets? Couldn't you just run the D Ring from your chin strap through that lock, or is there not enough clearance for the key with the helmet up so close to it?
So are people running this through their D Ring then locking the two loops into the integrated helmet lock? I guess I didn't explain what I was asking well, does one have to use the cable, or will the integrated lock work by itself?