Oxford XA14 Super Strong Alarmed Disc Lock Super strong motorcycle alarm disc lock with forged stainless steel construction Loud 110dB alarm siren- motion activated Powered by a long life lithium CR2 battery Twin spar lock chassis for double strength & cut resistance 14mm diameter T-locking pin anchors the lock together Toughened attack proof lock cylinder Unique design includes minder cable attachment eye High tech pick-resistant locking system Comes with 3 keys