For anyone still a bit confused about the ins and outs of single key lock barrels for the 12GS, here's the official line:
Locks can be purchased direct from BMW dealers in either coded (matches ignition key) or non-coded (random key number) form. The coded type are ordered to the chassis number of the bike and take around a week to arrive from the factory; most dealers will keep a supply of the non-coded locks in stock.
Unlike the majority of lock barrels for BMW bikes, the barrels used on the 12GS do not have repair kits available (these are kits comprising a barrel with a selection of each tumbler, the springs and one anchor tumbler). Many dealers have dismantled complete barrels and cannibalised the tumblers to allow them to provide coded barrels within a few minutes rather than waiting around a week for the factory to code and despatch them.
For the purposes of the pannier/top box locks, there are only 3 tumbler numbers. For some reason that I cannot fathom, the #3 tumbler seems to be the most prolific in barrels being cannibalised but the least in demand for the barrel to be coded - leaving a shortage of #1 and #2. If you are swapping over your own tumblers and are short, for example, a #1 tumbler, it is possible to miss out one per barrel without running into problems with the lock.
Hope that helps
Locks can be purchased direct from BMW dealers in either coded (matches ignition key) or non-coded (random key number) form. The coded type are ordered to the chassis number of the bike and take around a week to arrive from the factory; most dealers will keep a supply of the non-coded locks in stock.
Unlike the majority of lock barrels for BMW bikes, the barrels used on the 12GS do not have repair kits available (these are kits comprising a barrel with a selection of each tumbler, the springs and one anchor tumbler). Many dealers have dismantled complete barrels and cannibalised the tumblers to allow them to provide coded barrels within a few minutes rather than waiting around a week for the factory to code and despatch them.
For the purposes of the pannier/top box locks, there are only 3 tumbler numbers. For some reason that I cannot fathom, the #3 tumbler seems to be the most prolific in barrels being cannibalised but the least in demand for the barrel to be coded - leaving a shortage of #1 and #2. If you are swapping over your own tumblers and are short, for example, a #1 tumbler, it is possible to miss out one per barrel without running into problems with the lock.
Hope that helps