The pliable, adaptable characteristics of cable locks are for many cyclists a great option. SOURCE: Cable Lock What is a Cable Lock? We have a look at chain locks versus D-locks here. However, you’ll be carrying over 4kg in extra weight. You’ll be giving up more in security but they are a fantastic visual deterrent.Ī link that is 16mm thick is considered enough to deter the most commonly used bolt-cutters, and there are plenty of chain locks at this level. Portable chain locks are usually 12mm in width at most. They don’t all perform as well as D-locks against bolt-cropping, although they do well against the lock shackle. Chain Locks ProsĬareful locking required to avoid gaps between bicycle and immovable object meaning leverage for tools increasesĬhain locks fare well against the hammer test. Some weigh over 4kg, so may also damage a frame if dropped from height. Please pay particular attention and care if you plan to do this as your injuries may be considerably worse in the event of an accident if you have such dense, immovable objects close to your body and suffer a fall. They do tend to be heavy, but come with the adaptability of being able to be strapped around your waist or chest. The best ones will have a sturdy padlock, made to be hostile to damage caused by impact or lock-pickers.Ĭhain locks offer a little more flexibility than D-Locks or cable locks and so tend to be more expensive, pound for pound. The loop of a chain lock is connected by a padlock, and you should ensure that the quality and strength of the chain is not compromised by it. At the higher end of the price range, a toughened metal chain link is bound in kevlar (used for flak-jackets) which will try to stand up to cutting tools. SOURCE: Chain Lock What is a Chain Lock?Ĭhain locks are widespread amongst motorbike users, and are perfectly acceptable for the same purpose of locking bicycles. This is evident in the amount that are seen used in bicycle sheds and bicycle parking areas the world over. Overall, they are considered to be a great deterrent. As the prices increase, the tensile strength difference between models is the same as two vans pulling at either end of the lock.ĭ-locks perform well in bolt cropping tests and sawing. Likewise, the best D-locks perform well under tensile strength resistance – defined as the ability to pull apart. This is when the lock defies the act of being twisted. The best D-locks have the highest torsional resistance. Manual and power tools are used, along with force and delicate skill. Testers and certification companies tend to be aligned in testing the parameters of locks. The feedback is generally positive about D-Locks, providing that they are correctly and sensibly used. May not be wide enough for all immovable objects The more removable parts you have, the more chances are that you should consider adding a cable to the D-lock set up. Obviously there are fixed boundaries of use for such a solid mechanism, but they can be used to secure wheels, any quick release components, or even parts you carry with you to the frame. They’re capable of working in the majority of locations, and suit any bicycle. They’re considered a highly acceptable form of discouragement for thieves.ĭ-locks are presented in a wide range of sizes and materials, and also an array of prices. As you join them together, a D-shape is formed. There’s a U-shaped steel shackle, and the barrel-shaped locking device. These are great for day-to-day use.ĭ-locks are made up of two parts. They’re like a big padlock, and are considered particularly strong and reliable. They are often referred to as U-locks because of the distinctive shape of one part when unlocked. If you ride with someone else, combine your locks for more protection.ĭ-locks are the most common type of bicycle lock. Avoid placing the lock where it can easily be levered or smashed. Attach the frame and wheels where possible. Find something immovable that you can legally attach it to. Check the area around you – abandoned single wheels are evidence of a popular area for bike thieves.īuild in some time to your commute to find the safest spot. Find areas with CCTV, or near areas with security patrols. Thieves will look for the quickest and quietest way to take a bicycle. As cycling becomes more popular as a commuting alternative, a marketplace for stolen models is created. Over 100,000 were stolen per year in England and Wales from 2002 to 2021. It’s important to choose a lock with a good Sold Secure rating and consider factors such as location, visibility, and how you lock your bike.Įven the best bike lock cannot guarantee your bicycle will be waiting when you return to it. D-locks are strong and reliable, while cable locks offer flexibility. The best type of bike lock is a D-lock (U-lock) combined with a cable lock.
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