Security level (by manufacturer)
The level of protection of the lock according to the standards of the manufacturer. The higher the number, the more reliable the model is. However, note that the levels of protection of different brands are not compatible with each other and it is appropriate to compare locks according to this indicator only within the same brand.
Cable length
The length of the cable (or chain, in models of the corresponding type — see above), provided for in the design of the lock.
The longer the cable / chain, the more places will be available for fastening the bike and the easier it will be to lock other parts besides the frame (primarily the wheels). The most modest indicators in modern bicycle locks are about 500 – 600 mm — these are the simplest models, including for children's bikes. In general, a cable lock with a length of less than 1000 mm is considered short, up to 1500 mm — medium, and in the most advanced models this figure can reach 2500 – 3000 mm. But heavier
chain locks are made, respectively, shorter, among them a figure of 1500 mm or more is already considered advanced. Well, anyway, it is worth remembering that the reverse side of a large length is an increase in weight and dimensions in the folded position.
Cable diameter
The thickness of the cable used in the construction of the lock of the corresponding type (see above). However, this parameter can also be given for chain locks — in this case we are talking about the thickness of the wire from which the chain links are riveted.
In general, the thicker the cable / chain, the more difficult it is to bite / saw through the bike lock and the more reliable it will be. So, in the case of cable locks, it is believed that a thickness of up to 10 mm provides protection against theft “on a jerk” rather than against instrumental damage, and ideally, the cable should be no thinner than 15 mm. With chains, the situation is somewhat different. On the one hand, solid wire is much more resistant to damage — all the more so since it is far from always possible to unbend a link sawn in one place, and to completely saw the chain, the wire must be cut twice. On the other hand, a large thickness has a much more noticeable effect on the dimensions and weight of bike locks (which is already rather big compared to cable locks). Therefore, even in the most advanced chain models, this figure does not exceed 10 mm.
It is also worth remembering that, in addition to thickness, the reliability of the lock is also affected by the materials (alloys) used in its construction.
Frame/seat mount
Own mount, designed to fix the lock on the bike "out of hours" — in the process of movement and when parking in safe places. In accordance with the name, such a mount is installed on the frame or under the saddle — depending on the type of lock: for example, a saddle mount is popular among cable models, and a
segment mount will fit only on the frame. Usually, the lock is installed and removed using a quick-release latch.
Of course, the lock can be carried in a pocket, backpack, etc.; however
, mounting to the frame/seatpost is often more convenient. In addition, keeping the lock on the bike is less likely to forget it when leaving.
