I've got a set of 3 barrel locks and 2 keys at hand, taken from aluminium top box and side panniers from the V4 Multistrada. I've bought this luggage set second hand, and my bike came with matching barrels, so I swapped the bike matching set in the luggages. So I have no use for this set I took out. No idea what they normally cost, so say if you pay £30 to cover the postage, and have some extra cash on a side, should be good enough. Negotiable if you think it's too much.