Comparison Sigma BC 12.0 WR vs Sigma BC 12.0 WL

The type determines, first of all, the method of communication with the remote wheel speed sensor. Recall that most bike computers are equipped with such a sensor, it is mounted on a fork, and a special magnet is attached to the wheel; when the wheel rotates, the device detects the passage of the magnet past the sensor and determines the revolutions by their frequency. The connection options are:

— Wired. The advantages of a wired connection are low cost, reliable connection, and the fact that the speed sensor does not require its own battery. And the battery of the computer itself with such a connection “lives” longer than with a wireless one. On the other hand, such devices are somewhat less convenient to install than wireless ones, and in case of an unsuccessful fall or collision, there is a risk of breaking the wire.

— Wireless. Such a connection allows you to do without unnecessary wires, which greatly simplifies the installation of the bike computer. At the same time, it costs more than a wired one, and two batteries are used in such a system — in the computer itself and in the speed sensor, and you will have to monitor both. Also, if there are many other wireless cycling computers nearby, the connection may fail.