Description
Secure Your Ride with the A8 Road Bike Anti-Theft Alarm Lock

Guard your expensive bicycle against professional thieves and improve your road safety instantly. The CycleAddons a8 road bike anti-theft alarm lock is a high-utility, multi-purpose security system explicitly engineered for modern road cyclists, mountain bikers, and urban commuters. Integrating a powerful 115DB anti-burglary siren with a high-visibility LED COB tail light, this smart device offers premium round-the-clock defense and remote accessibility.
Why Performance Riders Choose the A8 Road Bike Anti-Theft Alarm:
Stop thieves dead in their tracks. This a8 road bike anti-theft alarm delivers a piercing blast up to 115DB with three sound options (Siren, Bell, and Chirping) to instantly alert everyone nearby.
Enhance your night visibility dramatically. The integrated red lamp features three versatile lighting modes—Constant, Slow Strobe, and Breathing Strobe—to keep you visible to motorists in low light.
Experience total convenience. Operate the device seamlessly via the included wireless remote control or use the physical button switch directly on the chassis.
Built for continuous outdoor abuse. Protected by an IP65 waterproof rating, the reinforced plastic shell withstands heavy rain and muddy trails flawlessly.

Technical Specifications Matrix
Examine the electrical output parameters, battery specifications, and construction materials below:
| Specification Field | Hardware & Technical Details |
|---|---|
| 🚨 Electronic Siren Output | Up to 115DB Blast (3 Profiles: Siren / Bell / Chirping) |
| Lighting Source & Modes | High-Brightness LED COB Red Light (Constant / Slow Strobe / Breathing Strobe) |
| Lamp Battery Hardware | 700mAH Li-polymer Rechargeable Core (~20–40 Hours Active Run Time) |
| Charging Input Specs | ~2–3 Hours Full Charge via Max 5V 2A USB Input |
| Controller Battery Profile | 12V / 27A Battery (Included, Replaceable) |
| Weatherproof Ingress Rating | IP65 Certified Dust & Water Resistant |
| Body Construction Material | Heavy-Duty Reinforced Engineering ABS & PC Plastic Shell |
⚠️ Operational Guidelines & Water Ingress Warnings:
- Water Exposure Protection: While IP65 certified against dust and heavy rain splashes, do NOT submerge the alarm unit under water or spray high-pressure power washers directly into the speaker port.
- Charging Input Safety: Always restrict USB charging power to a maximum 5V 2A input source to protect the 700mAH lithium-polymer core from over-voltage damage.
- Auditory Precaution: Do not activate the 115DB siren test near human or pet ears, as high-decibel audio blasts can cause temporary hearing discomfort.
Who This Product Is For:
Package Includes:
- 1 × Authentic A8 Road Bike Anti-Theft Alarm Lock Lamp Assembly
- 1 × Wireless Remote Controller (12V/27A Battery Included)
- 1 × Universal Mounting Bracket & Hardware Kit
- 1 × Premium USB Charging Cable
Frequently Asked Questions (FAQ):
Q: How loud is the siren on the A8 road bike anti-theft alarm lock?
The electronic alarm system produces a powerful audio blast up to 115DB. This volume level is loud enough to disorient a thief instantly and draw the immediate attention of bystanders, providing exceptional anti-burglary deterrence.
Q: Is this A8 road bike anti-theft alarm lock completely waterproof?
The device features an IP65 ingress protection certification, meaning it is tightly sealed against dust, mud, and heavy rainwater. However, it is not designed to be submerged continuously under water.
Q: How long does the tail light battery last on a single charge?
The integrated 700mAH lithium-polymer battery delivers an active run time between 20 to 40 hours, depending on your chosen lighting and sound modes. Recharging to full capacity takes only 2 to 3 hours via standard USB input.




















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