Wide Application: Fits various vehicles with disc brakes up to 7 mm with holes, such as motorcycles, mopeds, yachts, scooters, ATVs, and electric bicycles. Premium Quality: This motorcycle lock is made of aluminum alloy, high quality and durable. Waterproof, high temperature resistant, suitable for outdoor weather conditions. Disc Alarm Lock: This alarm disc lock with built-in shock sensors can detect vibrations and movements. The 110 dB alarm system deters potential casualties at home or when parked outdoors and is convenient for cyclists when parked outdoors or at home. Easy to use: Press the alarm lock button to start the locking process. 5 seconds later, a beep will sound to indicate the correct alarm activation. Unlock the alarm system with the key. The compact size is very convenient. Bonus accessory: The motorcycle lock includes a reminder cable. The eye-catching yellow color reminds you to remove the brake disc lock before riding.