We believe that more spending on a harder lock, like the New-U Evolution, could drastically reduce the percentage of thieves using the tools needed to cut your lock. The highest quality products currently on the market use stainless steel to avoid a number of disadvantages caused by carbon steel and aluminum, including corrosion (rust) and damage to the unique key intakes of the locking mechanism due to key slipping. The Mini+ (a larger version of the Mini) is Sports Illustrated's choice for the best bike lock overall, with its light weight and the intelligently designed locking mechanism that brought it high marks. And because of their comparatively complex construction, I have some doubts about how well they will continue after a thief tries (and failed) to defeat them. It's hard not to notice one of these tools, but a thief who can mask the noise and is brazen enough to use one will probably succeed in stealing the bike. You put more than 1 or more of your answers in the “High Risk” column, then you need a lock that provides you with a higher level of protection. So if you're looking for the ultimate safety for your bike shed or other bike storage solution, then this is a fantastic (albeit expensive) choice. Another type of locking skewer uses a uniquely shaped nut that can only be rotated with the matching base/plinth/key, which is usually a wrench-like tool that is small enough to fit on a keychain. Abus vs Kryptonite vs OnGuardi handle this much more detailed in the Abus vs Kryptonite vs page (which includes a very detailed review of the various “anti-theft protection” schemes). The main drawback is that a hacksaw on a thicker lock can be slow, when trying to cut, catch and tie a cable and requires some physical effort to use in general. The lock is the current favorite of the Wirecutter (replaces the previous Evolution Mini-7), which is not to a small extent due to the combination of a fairly affordable price and solid protection for your ride. This means that they are large enough to fit a whole load of objects, and therefore they are suitable for almost everyone, no matter what kind of bike they ride and where they lock it. For the absent among us (guilty), a quick tug on your bike after you can lock it a great way to ensure that you a) got the lock through the frame, and b) got the lock on the posts. High security, lightweight, low price: Pick TwoA thief with the right tools can defeat any bicycle lock in 5 minutes, but this does not mean that all the locks are the same: the crook will cut hell by increasing a hardened steel U-lock or chain with an angle grinder, so it is more likely that he or she will defeat a cheaper, lightweight cable lock with a set of bolt cutters. In 5 minutes you can order a coffee, check your email, politely look at the other cafe visitors, get said coffee and return to your unlocked bike stolen 4 minutes ago. These are great solutions if your city bike currently uses a quick-change mechanism that thieves like to target as they make your components very easy to steal. com The Litelok Gold is another type of lock: it consists of Boaflexicore, a Mystery Composite material (Litelok does not work on his makeup), which is pliable but difficult to cut. The Mini-U-Lock is hardened steel and uses double shackles to thwart the cut-and-twist method, making it the safest locks for sale; from own experience, the 4. However, the locks on which drills work well (e.g. folding locks) have become more popular, and reducing noise and size over an angle grinder makes a drill to wear a tempting tool for a thief. Our use of vise probably led to a cutting time faster than that of most real scenarios, but skilled thieves have a few tricks (with zipper or lean on the bike to stabilize it) that these times are not too far from what you could expect. It's pretty stiff, so it's not as easy to get your bike as you might think, and it's a bit bulky if you want to carry it in a bag rather than strapped to your frame. It is.