Bicycle Alarm Disc Brake Electric Lock with Keys Motorcycle Alarm Brake Rotor Padlock Aluminum Alloy Motorcycle Bike Accessories Features: 1. Weatherproof Security: Our motorcycle alarm wheel disk brake lock is designed to withstand the elements, ensuring full functionality even in the rain, giving you peace of mind in any weather condition. 2. Universal Fit: This bike alarm security padlock is engineered to secure a wide array of vehicles, including road bikes, mountain bikes, e-bikes, and motorcycles, making it an essential accessory for all your rides. 3. Keyless Convenience: Locking your vehicle has never been easier with our no-key-required mechanism of this bicycle alarm disc brake electric lock; simply press down to engage the lock and protect your bike swiftly and effortlessly. 4. Long-Lasting Battery: Equipped with a high-capacity battery, our bike warning wheel lock offers extended periods of protection, reducing the need for frequent replacements and maintaining vigilance over your vehicle. 5. Loud Alarm System: With a high-decibel alarm, this motorcycle alarm brake rotor padlock deters theft by emitting a powerful alert when tampering is detected, providing an additional layer of security for your bicycle or motorcycle. Specification: Origin: Mainland China Main Material: Aluminum Alloy Color: Black, Red, Blue, Green, Yellow Size: About 8cm (3.15in)/6.3cm (2.48in)/3.5cm (1.38in) Net Weight: About 198g Battery: 6/Button Battery