RL21 RoundLock Bundle including RL21A Socket

This bundle includes the High Security RL21 RoundLock which has achieved "SOLD SECURE MOTORCYCLE GOLD" accreditation plus the RL21A socket that will be needed to use the lock with our Protector 19mm Security Chain.

The standard RL21 lock is ideal for use with the 13mm or 16mm Protector Chains, but the standard socket section just fouls the 19mm chain link, which is why the specially designed RL21A socket with its bevelled top edge is needed when you want to use the lock with the 19mm chain.

The Pin Element of the RL21 RoundLock body is 21mm in diameter, so the lock doubles as a very compact, convenient disc lock, which at just 0.53kg is practical and easy to carry.

This RL21 Bundled pack allows you to use the lock with the 13mm, 16mm or 19mm High Security Protector Chains, but if you already have the standard lock, and you need to use it with the 19mm chain, you can as an alternative, just purchase the special RL21A socket to use with your existing lock.

Keyed Alike Option: We are able to offer the Roundlocks in a Keyed Alike option to save having multiple keys, however this option is only available when purchasing together and cannot be retrospectivly matched to key patterns from previous orders.

Resistance to attack

When tested in use with a 19mm Protector Security Chain by Bennetts - the Bike Insurance Specialists in Oct 2017, this was the result;

...the RoundLock is an excellent piece of kit, fitting snugly against the edges of the chain`s links, making it very difficult to attack.

When attacked with a sledgehammer, the lock merely deformed (the shape of the lock itself makes it very difficult to hit squarely).

It`s inaccessible with bolt croppers, and is so thick that an angle grinder attack causes little damage – in fact the chain is the easier option for a crook to attack ...and that is also a very tough cookie to crack!

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See all security chains