Quad Lock Bike Alarm and Finder

Add extra security to your bike with the Quad Lock® Bike Alarm and Finder. Combining a motion-triggered alarm with Apple Find My compatibility, this compact unit alerts nearby people to tampering and helps you locate your bike through your Apple device.

Motion Detection with a Powerful Alarm

Movement triggers an initial warning, with continued tampering activating a three-stage escalation that reaches a full 93 dBA alarm. It provides an audible deterrent when someone interferes with your bike.

Locate Your Bike with Apple Find My

Check your bike’s location using the Apple Find My app on a compatible iPhone or Apple device. There is no separate app to install and no subscription required.

Fingerprint Arming and Disarming

Activate or deactivate the alarm with a touch of your finger, without entering a code or reaching for your phone. Store up to 20 fingerprints to give trusted family members and friends access.

Secure Mounting for Everyday Riding

The included anti-theft screws secure the module to a compatible mount or adaptor, helping prevent easy removal. An IP66-rated housing protects against dust and powerful water jets, while the rechargeable battery delivers up to six months of use between charges.

Specifications

• Alarm: Motion activated with three-stage escalation
• Alarm output: 93 dBA
• Location tracking: Apple Find My compatibility; for compatible iPhone and Apple devices only
• Access: Fingerprint arming and disarming, with storage for up to 20 fingerprints
• Battery: Internal rechargeable lithium battery
• Battery life: Up to six months between charges
• Weather resistance: IP66
• Operating temperature: -20°C to +60°C (-4°F to 140°F)
• Housing materials: Polycarbonate and nylon
• Dimensions: 38 × 59.5 × 16 mm (1.50 × 2.34 × 0.63 in)
• Weight: 22 g (0.78 oz)
• Mounting interface: Quad Lock® 360™; requires a compatible cycle mount or dedicated adaptor

What's Included

• 1 × Quad Lock® Bike Alarm and Finder module
• 1 × USB-C to magnetic pogo charging cable
• 1 × dedicated tool for the supplied anti-theft screws

Included Anti-Theft Screws

• 1 × M4 × 12 mm screw
• 1 × M5 × 30 mm countersunk screw
• 1 × M5 × 35 mm countersunk screw
• 1 × M5 × 45 mm countersunk screw

Mount and Adaptor Compatibility

The Bike Alarm and Finder attaches through the Quad Lock® 360™ interface and supports the following mounting options:

• Quad Lock® Out Front Mount purchased after September 2025
• Quad Lock® Out Front Mount PRO
• Quad Lock® Stem Cap Mount*
• Quad Lock® Stem Cap Mount Adjustable*
• Quad Lock® Saddle Rail Adaptor
• Quad Lock® Bottle Cage Adaptor