I bought the trailer from the dealer and the setup was included. They installed the lock and I drove it home a couple of weeks ago. Actually used the trailer yesterday and the wife and I simply put the helmets in the trailer and i proceeded to lock it before we went into the local Sam's club. You guessed it, the lock came out with the key when I turned it to lock and then atempted to remove the key. (remember the helmets are now locked in the trailer), I called the dealers cell phone, this was on Sunday, and to my surprise he called a locksmith as I was still on the phone with him and the guy showed up in less than 30 minutes. The lock was removed and installed correctly as the locksmith(who worked for the spyder dealer 3 or 4 years before going into his family locksmith business) stated that sometimes the lock barrel gets installed in the wrong position, 180 degrees from what is correct ,i think ,and this enables it to come out of the housing. He said it was an easy mistake to make. Anyway, in 10 minutes he had the trailer open and the lock reinstalled. The dealer is East Tennessee ATV Elizabethton Tenn. This is really good service at no cost to me. Keep the lock lubed with WD and always be easy with it and it should hang in there where it belongs. (although I think I will stop putting the helmets in there just in case)