New Design Small Alarm lock disc brakes Bicycle Lock Bike MountainFixed Anti Theft Security Bicycle Accessories bicycle Parts<br>&nbsp;<br>Features:<br>use keys to turn on/off alarm device<br>Pressed by hand can be unlocked, without keys, safe andconvenient<br>Type:Alarm lock disc brakes Lock<br>Color:White, yellow, Orange, blue<br>Dimensions: 83x32x60 mm<br>Weight: 370g<br>Accessories: Electronic alarms, outer casing, lock cylinder,key<br>Technical parameters: Alarm current &lt;200mA, quiescent current