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This is the RL21A special socket adaptor that allows our SecurityForBikes RL21 RoundLock to be used with Protector 19mm Chains. It is specially machined to achieve the perfect fit, making it nigh-on impossible for a thief to attack the heart of the lock.
Please note that this is for the RL21A Socket, Only. No lock or keys are included. Note that the last photo is purely to show the comparison with the standard RL21 socket - Only the special RL21A socket is included in this item entry.
The RoundLock is available separately - Please Click for the RoundLock product listing.
Click for more technical information on the RoundLock.