YOHOOLYO Alarm Disc Lock for Motorcycle & Scooter — 7mm Pin, 110 dB Alarm, Weatherproof (Black)

YOHOOLYO Alarm Disc Lock is a heavy-duty, weatherproof motorcycle and scooter brake lock with a 110 dB motion alarm, 7mm hardened pin, and a 5 ft reminder cable for visible theft deterrence.

This compact disc lock combines a robust metal body and an integrated alarm system to make opportunistic theft of motorcycles, scooters, bicycles and dirt bikes much less appealing. Designed for wheel discs and spokes, it resists weather and impact while delivering an audible 110 dB alarm if tampered with. The lock includes spare batteries, two keys, an Allen wrench for maintenance, and a carry pouch for neat storage.

How loud is the alarm and when does it trigger?

The built-in alarm emits up to 110 dB, loud enough to attract attention in busy streets or parking areas. A motion sensor activates after a short 5-second arming delay and sounds immediately on significant movement or tampering.

• Peak volume: 110 dB to deter thieves and alert bystanders
• Trigger: motion sensor with 5-second delay to avoid false alarms
• Auto-reactivates after repeated disturbances

Will this lock withstand rainy conditions and daily outdoor use?

The lock housing and components are designed to resist rain and environmental corrosion so it can stay mounted on a parked bike in most weather. Seals and rust-resistant materials protect the alarm electronics and locking mechanism from moisture damage.

• Weatherproof casing protects internal alarm and electronics
• Rust-resistant metal pin and body for outdoor durability
• Works in wet conditions while maintaining alarm functionality

Does it fit my motorcycle, scooter, or bicycle disc brake?

The 7 mm hardened locking pin is sized to fit through disc holes and many spoke patterns, and the pin rotates for flexible positioning. It’s suitable for most motorcycles, scooters, dirt bikes and bicycles with a disc or spoke hole large enough to accept a 7 mm pin.

• Pin diameter: 7 mm — fits common disc brake holes and spoke openings
• 360-degree pin positioning to lock on different wheel designs
• Works with motorcycles, scooters, bicycles, and dirt bikes

What accessories are included and how long will the batteries last?

The package includes two security keys, six internal batteries plus six backup batteries, an Allen wrench for disassembly, a 5 ft reminder cable, and a carry pouch. Multiple batteries extend operational life and provide easy replacement when needed.

• Included: 2 keys, 6 installed batteries, 6 spare batteries
• Carry pouch and Allen wrench for maintenance and storage
• 5 ft reminder cable increases visibility to prevent riding off with lock attached

Who is this for? Riders who want a compact, visible, and audible deterrent will appreciate this lock — especially urban commuters, scooter and motorcycle owners who park in public places, and bicycle users with disc brakes seeking added security. It’s a practical choice when you need something sturdier than a cable lock but more portable than a chain; the loud alarm and weather-resistant build make it useful for short- to medium-duration stops where quick, effective theft prevention is needed.