The Oxford Products Alpha XA14 Disc Lock is a super strong motorcycle and scooter alarm disc lock thanks to a forged stainless-steel construction. This is Sold Secure and ART 42140 approved. The Alpha XA14 features a 110-dB alarm siren that is motion activated as well as a twin spar lock chassis for double strength and cut resistance. The 14mm diameter T-locking pin anchors the lock together. This has a rechargeable high-power lithium polymer battery (with USB cable included for charging) and comes with a minder cable attachment eye and 3 keys.