![]() The best chains, with links 14mm thick or more, offer the highest five-star ART security ratings.Can be as convenient as a cable, but offer much better security.Chains with integrated locks are easy to use.Versatile to wrap through your bike and around the fixed object.Chains with links up to 10-12mm thick are portable, if heavy, and easy to carry wrapped around your bike seatpost.But not so versatile in use and may limit where you can lock your bike. The best balance of price, security and convenience for most people. Won’t fasten around objects wider than approximately 100mm.Limited versatility – bike needs to be positioned close to the locking object.Reasonably convenient to carry on a rack or in a backpack, and many come with a bike mount.Relatively lightweight for the level of security they offer.You’ll also find rated models from AXA, Giant, Knog, OnGuard and Oxford. Both have multiple models rated by ART and Sold Secure. The 2 big brands widely available in New Zealand retail stores are ABUS and Kryptonite. You can compare the manufacturer ratings to see if a lock without a Sold Secure or ART rating is likely to compare well to one with a rating from the same brand. That means there are locks that are secure that have never received a rating. How much security do they offer?Ī manufacturer must submit a lock to Sold Secure or ART to be tested. There are only a handful of ART 5-star locks and all are heavyweight chains and padlocks. A two-star ART rating is roughly equivalent to a silver Sold Secure award and the minimum you should look for. ART rates locks on a one- to five-star scale, while Sold Secure awards bronze, silver, gold or diamond ratings. ![]() Check the list of rated locks on their websites: and .īoth organisations test bicycle locks and rate them based on the type and length of attacks they can withstand. The ratings are usually shown on the packaging, or even on the lock. While that’s useful to understand the hierarchy of locks from a particular brand, we recommend choosing a lock that has been independently tested and rated by ART in the Netherlands or Sold Secure in the UK. The main lock manufacturers rate their locks using in-house security scales. But how can you tell which models are the most secure? There are 3 types of secure lock to consider: U, chain and folding. As long as a lock has no particular weak points (such as a vulnerability to “picking”), a thicker lock takes longer to bust open or cut apart. That’s because most attacks rely on brute force to break the lock. Keys can be hard stamped to include up to eight characters such as a name or key number.The most secure locks are also the bulkiest and heaviest. Engrave your company logo or any alphanumeric characters for safety lockout purposes, employee or department identification or company or institutional/school branding. To customize your locks, you can laser engrave up to six areas on your Weather Tough®, Shrouded, Brass or Aluminum ProSeries® padlocks. Some common lengths and designations are: The standard length varies by product and the optional lengths are designated in the product number: ie 3LF. The shackle length is measured from the top of the lock body to the inside of the shackle. ![]() Many Master Lock padlocks are available with extra long or short shackles to provide sufficient reach to lock around the application. Hardened steel shackles or optional brass shackles.This padlock family has options including: Laminated brass padlocks offer excellent corrosion resistance for marine environments. Spool pins are virtually impossible to pickĬommercial grade laminated steel padlocks include hardened bottom plates with anti-drill keyway to provide security not available elsewhere.5-pin and 6-pin cylinders provide tens of thousands of key changes.Dual ball locking mechanisms that resist pulling and prying.Hardened boron alloy shackles for superior cut resistance.ProSeries® high security padlocks are available in five styles including Weather Tough®, High Security Iron Shroud, Solid Steel, Solid Brass and Solid Aluminum. How do you know which lock is the best choice for your needs? Consider your application, the environment and the size or space requirements the lock needs to fit Then, choose the lock with the material and size that match your needs. Master Lock offers the widest variety of padlock styles, materials and keying options of any manufacturer.
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