Used it on my motorcycle. Sold the bike. Lock still works great. Some of the paint has rubbed off from storing it under the seat. Comes with both keys and special opener for the battery tray. Product Description Xena XX-6 Disc Lock High-grade mono-block alloy construction and piercing alarm make the XX6 a remarkably effective way to protect your motorbike or scooter. Lock: Fits virtually any scooter or motorbike, with a high-grade mono-block alloy construction and a 6mm steel pushdown locking pin. Ice-spray proof and pick proof key and barrel. Alarm: Shock and motion sensors linked to a sophisticated microprocessor trigger a 120dB alarm powered by a single CR2 long-life Lithium battery. All electronics are housed in a replaceable alarm module -- no tools required. Self-arming, with no on-off switch, re-sets to armed mode within 15 seconds Features: 1 5/8" (42mm) throat width 1/4" (6mm) diameter hardened steel locking pin Ideal for smaller bikes and scooters High-nickel-content stainless steel body Push-down locking system Ice spray-proof and key barrel Included Items: (1) Disc lock (2) Keys (1) Alarm module removal key