RUBY.Q

RUBY.Q Alarm Disc Lock 2-Pack — 110 dB Alarm, 7mm Pin, Red & Black with 5ft Reminder Cable

High-performance automotive accessories made for confident daily results

$40.98

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Why customers choose NorthTrail Auto

RUBY.Q 2pcs Alarm Disc Lock is a two-piece disc brake security set with a loud 110 dB alarm, heavy-duty steel construction and a 7mm locking pin to deter theft on motorcycles, scooters and bicycles.

This dual-pack contains one red and one black alarm disc lock plus installation tools, a 5 ft reminder cable, keys, a storage pouch and button batteries so you can secure vehicles with disc brakes quickly. Each lock senses vibration and triggers a high-decibel siren to attract attention, while the compact, weather-resistant body resists cutting and corrosion. The set is designed for simple one-press arming and portability for everyday riders who want visible, audible theft deterrence.

How loud is the alarm and when does it trigger?

The built-in siren reaches approximately 110 dB and activates whenever the unit detects significant vibration or impact on the brake disc. This sudden, sustained sound is intended to startle thieves and alert bystanders, giving you time to return or alert authorities. Sensitivity is automatic; arming is a one-press action.

  • 110 dB alarm level for strong audible deterrence
  • Automatic vibration/impact trigger when locked on disc
  • One-button arming with audible beep confirmation
  • Alarm continues until disarmed or battery depleted

Will these locks fit my motorcycle or bicycle?

Each lock uses a 7mm locking pin and is shaped to clamp through a wide range of disc brake holes. They fit many scooters, electric bikes, motorcycles and bicycles that accept a 7mm pin; confirm your disc thickness and rotor hole diameter before purchase. The compact design suits both road and urban scooters where a visible disc lock is practical.

  • 7mm hardened steel locking pin for common disc holes
  • Suitable for motorcycles, scooters, e-bikes and bicycles with compatible rotors
  • Low-profile body works with most standard rotor layouts
  • Check rotor hole clearance and spacing before fitting

What materials and weather protection does the lock offer?

The housing is forged from heavy-duty steel to resist cutting and shearing, and key components are treated for rust resistance. Seals and coatings help the unit withstand damp and rainy conditions, so the alarm and locking mechanism remain functional during typical outdoor use. The 7mm pin is hardened to resist bending under force.

  • Heavy-duty steel body with rust-resistant finish
  • Hardened 7mm pin for enhanced cut and shear resistance
  • Weatherproofing to maintain performance in wet conditions
  • Compact, corrosion-resistant hardware and fasteners

What comes in the package and how easy is it to use?

The set includes two alarm disc locks (one red, one black), an Allen wrench, keys, a 5-foot reminder cable, a storage pouch and button batteries installed with spare batteries included for convenience. Operation is straightforward: press the button to arm, confirm the beep, lock through the disc hole, and carry the compact pouch when not in use. Spare batteries and a small tool make maintenance and quick fitting simple.

  • 2 alarm disc locks (red and black), keys and Allen wrench included
  • 5 ft reminder cable to reduce accidental riding with the lock attached
  • Storage pouch for transport and spare batteries included
  • One-press arming and audible confirmation for easy use

Who is this for: Riders and commuters who want an easy-to-carry, visible locking solution with an audible alarm for short-term parking and urban stops. Ideal for motorcycle and scooter owners, e-bike riders, or anyone seeking a compact deterrent to supplement larger chain locks or parking security. This kit fits users who prefer simple one-button operation and included accessories for immediate use.

FAQ

Q: How many batteries does each lock need and are any included?

A: Each alarm requires six LR44/AG13 button batteries; the package includes installed batteries plus spare batteries for immediate use.

Q: Can the lock fit any disc brake rotor?

A: It fits rotors that accept a 7mm locking pin; check your rotor hole diameter and clearance before purchase.