Protecting an electric bike requires more than a sturdy cable. Locks with built-in alarms deter thieves by combining physical security with audible alerts and remote controls. The five selections below pair heavy-duty construction with loud, responsive alarms and convenient unlocking options, making them suitable for urban commutes, campus lots, and weekend rides. Use this guide to compare features and pick the best fit for your bike, riding style, and storage situation.
| Product | Brand | Key Features |
|---|---|---|
| Mengshen Bike Lock With Remote Control | Mengshen | Remote unlock up to 40m; 4-digit password; 115dB alarm; IP55 waterproof |
| Wsdcam 113dB Bike Alarm With Remote | wsdcam | 7-level sensitivity; 3-level volume; IP55 waterproof; remote control; 66ft range |
| EnzZone Heavy Duty Anti Theft Alarm U Lock | ENZZONE | 16mm hardened steel; 5”x6” lock opening; 3 keys; motion-activated alarm |
| Bike Chain Lock With Alarm, 4Ft | eMjollRay | 110dB alarm; 4ft chain; rechargeable remote; 60 days standby |
| Powvine 110dB Bike Alarm | POWVINE | 110dB alarm; 7 sensitivity modes; remote up to 100m; IP65 weather-resistant |
Mengshen Bike Lock With Remote Control
The Mengshen lock combines remote access with a secure password option, enabling convenient protection for bicycles, motorcycles, gates, and strollers. The remote control can operate from up to 40 meters, while a 4-digit password system supports up to 256 combinations, reducing the chance of unauthorized access. An audible alarms engages when movement is detected or tampering occurs, serving as a strong deterrent in busy areas. The IP55 rating ensures resilience against rain and humidity, and the temperature tolerance covers -10°C to +60°C.
- 2 ways to lock/unlock: remote or password
- Remote range up to 40 meters
- 115dB alarm for loud deterrence
- IP55 waterproof and wide operating temperature
Wsdcam 113dB Bike Alarm With Remote
Wsdcam’s alarm system targets motorcycles, bikes, and scooters with a vibration sensor and remote control. It features a 7-level sensitivity setting and a 3-level volume adjustment to tailor alerts to your surroundings. The IP55 waterproof rating supports outdoor use, and a remote provides wireless operation with a significantly broad range, up to 66 feet, for quick arming and disarming.
- Vibration alarm with adjustable sensitivity (7 levels)
- 3 levels of volume; IP55 waterproof
- Remote control with up to 66ft range
EnzZone Heavy Duty Anti Theft Alarm U Lock
This ENZZONE U-lock uses 16mm hardened steel designed for maximum resistance to cutting and leverage. It accommodates wide-tire wheels and fat-tire e-bikes, with an opening measurement of 5 inches by 6 inches. A high-pitched audible alarm activates on motion, providing audible notification when the lock is tampered with. The package includes three keys for added convenience and redundancy, and the unit is weatherproof for use in varied climates.
- 16mm hardened steel construction
- Opening fits wide tire wheels (20″x4″ opening)
- Motion-activated high-pitched alarm; 3 keys
- Weatherproof design
eMjollRay Bike Chain Lock With Alarm
The 4-foot chain lock by eMjollRay uses an 8mm hardened steel chain paired with a 110dB alarm that triggers when motion is detected. A rechargeable remote control enables easy arming and disarming from a distance, and the system promises long standby times with USB-C charging. The combination of chain security and an audible alert makes this option suitable for bikes, scooters, and motorcycles parked in exposed areas.
- 110dB alarm triggered by motion
- 4-foot chain, 8mm hardened steel
- Rechargeable remote; USB-C charging
- Up to 60 days standby time for alarm
Powvine 110dB Bike Alarm
Powvine’s alarm system emphasizes customizable protection with 7 sensitivity modes and 3 alert sounds. A remote control supports arming from up to 100 meters, and the unit is IP65 weather-resistant for rain and dust exposure. The package includes a rechargeable system and a USB-C charging cable, making it easy to maintain power for extended trips on bikes, e-bikes, scooters, and motorcycles.
- 110dB alarm with 7 sensitivity levels
- Remote control up to 100m; three alert sounds
- IP65 weather resistance; USB-C charging
Buying Guide
Key considerations when selecting an e-bike lock with an alarm include alarm loudness, sensor sensitivity, remote range, and weather resistance. If you park in crowded areas, a higher decibel alarm and multiple alert options can increase deterrence. For frequent outdoor rides, IP-rated protection and robust construction (16mm or thicker steel) improve durability. The availability of multiple unlocking methods—remote, password, or physical key—adds flexibility for varying scenarios. Also consider battery life, charging method, and whether the lock’s shape and size fit your bike frame, saddle bag, or mounting system.
In practice, the best choice balances security with convenience. A U-lock or heavy chain with alarm is ideal for high-theft environments, while a cable with alarm and remote unlock suits quick in-and-out stops. If you ride in variable weather, prioritize weatherproof ratings (IP55 or IP65) and materials that resist corrosion. For fat-tire e-bikes, ensure the lock’s opening can accommodate wider wheels. Finally, verify that the alarm systems allow easy reprogramming of sensitivity and volume to align with your typical environments—urban streets, campus lots, or trailheads.
To compare, consider these practical scenarios:
- Urban daily riders benefit from a long remote range and a high-decibel alarm.
- Riders in damp climates should prioritize IP65 protection and stainless hardware.
- Owners with frequent quick-store stops may prefer a lock with a rapid remote unlock option.
- Those with fat-tire bikes should choose products that fit wider wheel openings.
- Lightweight commuters may favor compact locks with strong alarms for deterrence without heavy weight.