WEST BIKING W3 Waterproof Bicycle Rear Light with Brake Sensor
This smart bike tail light is for the urban commuter or weekend rider who wants to be seen and stay safe after dark. While many lights focus on brightness, this one adds a layer of proactive protection with its brake sensor, turning a routine ride into a more secure experience.
The brake sensor activates instantly when you slow down, flashing brightly to alert drivers behind you before they even react. You get a clear warning that your light is working, with a noticeable change in pattern that cuts through traffic noise. It mounts easily to your seat post and pairs with Alexa for voice-controlled on/off, so you can focus on the road. Waterproof design means it handles rain or splashes without a hitch, keeping you visible in all conditions.
Features
- Waterproof design for all weather
- Smart tail light with automatic functions
- Easy mounting on bicycle rear
- Brake sensor for enhanced safety
General specs
- Brand: WEST BIKING
- Model: W3
- Seller: Joom
- ID: 695cbc3c002288011274b9f2
- Brand: WEST BIKING
- Model: W3
- Function: Brake Sensing, Tail Light
- Waterproof: Yes
- Product Type: Bicycle Rear Light, Brake Sensor, Smart Bike Tail Light
- First listed by seller: 2/15/26
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Joom
Shipping options
United States
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| Brand | WEST BIKING | ROCKBROS | OFFBONDAGE | ROCKBROS | ||
| Model | W3 | WR05 | ATS-Q6 | Q0, Qzero | ||
| Color | ||||||
| Rating | ||||||
| Price | $99.37 | $13.81 | $11.83 | $16.77 | $24.67 | $11.83 |
| Seller | Joom | Banggood | Banggood | Banggood | Banggood | Banggood |
| Update | Feb 12, 2026 | May 9, 2026 | May 9, 2026 | May 9, 2026 | May 9, 2026 | May 9, 2026 |
| Features | Light sensor (ambient light darker = stronger light), Shock sensor (auto-on when riding, auto-off after 3 minutes if forgotten), Power save aurora mode (2 hours continuous use), Power saving mode (6 hours release), Safety (no glare, accident prevention), Cutoff line design (German StVZO bicycle headlight authenticate), USB charging, Easy to install anti-fall protection | Smart Brake Sensing, High Visibility LEDs, Tool-Free Installation, Waterproof Design, Long Battery Life | Dual Bracket Design, Lightweight and Portable, Brake Sensing, Intelligent Start Stop, 13 Light Modes, IPX6 Waterproof Rating, Day Night Light Sensing, Adjustable Brightness, Gear Memory Function | Built-in acceleration sensor with automatic brake highlighting, Sleep mode with 30-second inactivity timer and vibration wake-up, Intelligent ambient light detection for automatic activation | ||
| Weight | 0.11 lbs | Approx 0.077 lbs | 0.15kg | |||
| Material | ABS | ABS PC | PC | |||
WEST BIKING W3 Brake sensor for enhanced safety
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