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NEW: Protector 19mm ultimate uncroppable hardened boron steel chain (select length below), plus the super-compact RoundLock with both RL21 and RL21A sockets (compatible with 16mm and 19mm chains, respectively). The chain is Sold Secure Motorcycle Gold (in fact, it is Sold Secure Gold in every category) and the RoundLock is Sold Secure Motorcycle Gold/Quad & ATV Gold/Bicycle Gold/Motor Scooter Gold approved. The chain is 6.3kg/metre; the RoundLock combo is another 0.8kg. The chain is supplied with usually bronze colour sleeving, and the chain itself is finished with either zinc plating or a black finish.
3 keys supplied. Keyed-alike available at initial order only (not available retrospectively).
This package includes the standard RoundLock RL21 socket and also the RL21A socket, allowing a beautifully close fit with 16mm and 19mm chains, respectively. The RL21A socket is custom-made to suit the Protector 19mm chain.
The RoundLock can also be used as a motorcycle disc lock - Check that you have a suitable opening that will take the 21mm diameter shackle in your brake disc or disc carrier. You can then use this with a chain when at home and as a disc lock when out and about. Note that disc locks do not prevent a bike from being lifted into the back of a van, which is a common technique employed by thieves.
Price and weight shown are for the package including a 2.0m long chain - Please select alternative lengths below and the price displayed will be adjusted automatically.
Click for more technical info on the Protector range of security chains.
Click for more technical information on the RoundLock.
The following video gives a quick visual overview of the whole Protector range of chains, from the ultimate Protector 22mm Titan chain, through to the Protector 11mm:
Please note that the Protector 22mm Titan chain shown in the above video has been superseded with a new, even tougher, version. The video will be updated as soon as possible. We apologise for any confusion in the meantime.
Below is a short video overview of the SFB RoundLock, showing how it can be used with our Protector 16mm and 13mm chains and, with the optional RL21A socket, with the 19mm chains: