With a name like 'Screamer' you expect - quite rightly - an alarm system that gets noticed. Considering the 110 dB that the XA7 produces, you will not be disappointed.
Nevertheless, the Screamer is and remains in the first place a very good brake disc lock. One of the sturdy kind, with a 7 mm hardened steel locking pin. The housing - which also contains the alarm, the lithium battery and the loudspeaker - is a fairly solid obstacle for any potential thief. We mean this figuratively, because literally the dimensions of 65 mm (high) by 99 mm (wide) may not look too impressive, but they do make bringing the Screamer with you very easy.
Any shocks or movement will set off the alarm. The three included keys (carrying only one will do of course) are the only solution in this case. To close the lock again, a simple push on the button is sufficient. The lock itself is protected by a water-resistant cover.
The Screamer is one of the best-selling brake disc locks. There is a reason for that.
Before you can useit, you have to remove the plastic wrapping from the supplied CR2 battery. For this you remove the upper part of the disk brake lock. This can be done easily by following the instructions below.
Tip of the RAD-house: make it a habit to always attach your brake disc lock to the brake disc of your front wheel. It is much more noticeable for a potential thief (which is okay, a lock always has a dissuasive effect) and the odds are better that you notice it yourself before getting on.
You wouldn’t be the first to take off quickly and end up with a distorted brake disc or a banged-up mudguard.
