YOHOOLYO Motorcycle Disc Brake Alarm Lock — 7mm Pin, 110 dB Waterproof with 5ft Reminder Cable

YOHOOLYO Alarm Disc Lock is a heavy-duty, waterproof motorcycle and scooter brake lock with a 110 dB vibration alarm, 7mm hardened locking pin, and a 5ft reminder cable to deter theft and prevent accidental riding.

This compact disc brake lock combines a loud motion sensor alarm, corrosion-resistant construction, and practical accessories so you can park with more confidence. Built for daily riders and city commuters, the lock clips onto standard disc brakes and immediately arms a 110 dB siren when it detects strong vibration. It ships with backup batteries, two keys, an Allen wrench for maintenance, and a storage pouch for easy carry.

How loud and responsive is the alarm when someone tampers with my bike?

The integrated motion sensor triggers an audible alarm rated up to 110 decibels to draw attention when the lock experiences impact or significant vibration. The alarm activates automatically once the lock is engaged and produces repeated pulses until the disturbance stops or the correct key disarms it.

• 110 dB alarm level for immediate attention
• Automatic activation upon sensing shock or vibration
• Continues sounding until disturbance ends or key unlocks
• Waterproof electronics to operate in wet conditions

Will this lock fit my motorcycle or scooter’s disc brake?

YOHOOLYO’s disc lock is sized to work with many common brake discs: the locking pin is 7 mm thick and the unit is designed for discs up to 6 mm in thickness. It fits discs with or without factory holes, provided the distance from the hole to the disc edge is within the specified range.

• 7 mm hardened locking pin suitable for many motorcycles and scooters
• Compatible with discs up to 6 mm thick
• Recommended max width from hole to edge: under 55 mm
• Suitable for motorcycles, scooters, e-bikes and bicycles with compatible discs

What materials and accessories come with the lock to ensure durability and convenience?

The body is forged from stainless steel for impact resistance and rust protection, while the alarm components are sealed to resist rain and humidity. The package includes two unique keys per lock, multiple batteries for long service life, an Allen wrench for disassembly, a fabric carry pouch, and a 5 ft reminder cable to prevent riding with the lock still in place.

• Forged stainless steel construction for corrosion resistance
• Waterproof alarm module designed for outdoor use
• Six internal batteries plus six spares for extended operation
• Included keys, Allen wrench, carry pouch, and 5 ft reminder cable

How do I use the lock quickly and maintain it over time?

Locking is simple: align the device with the disc and press down until it clicks and the alarm arms with an audible beep. Regularly check and replace batteries as needed, keep the locking pin clean and lubricated lightly, and store the unit in the included pouch when not in use to protect it from grit and moisture.

• One-press operation — push down until it clicks and beeps
• Check and replace batteries periodically for reliable alarm function
• Use the Allen wrench to access internal compartments if needed
• Store in the provided pouch to extend lifespan

Who is this for? Riders who park outdoors in urban or shared spaces, commuters who want a visible and audible theft deterrent, and owners of motorcycles, scooters, e-bikes, or bicycles with compatible disc brakes. If you need a portable, weather-resistant lock with a loud alarm and practical extras like spare batteries and a reminder cable, this YOHOOLYO disc lock is built to add an extra layer of protection to everyday parking situations.