Gaciron LOOP-100 Smart Brake Bike Tail Light: Smart brake technology
If you commute through city traffic, the Gaciron LOOP-100 Smart Brake Bike Tail Light turns your ride into a safer one. Mount it on your seatpost or saddle rail in seconds with the magnetic clip. No tools, no straps—just click and go.
The smart brake feature senses deceleration and automatically brightens the light. Drivers behind you see a clear signal when you slow down, giving them extra time to react. The 100-lumen output is bright enough for daytime visibility, and the wide beam pattern ensures you're seen from multiple angles.
When you park, detach the light from the mount and take it with you. The waterproof design holds up in rain, and the USB rechargeable battery lasts for hours. You don't need another gadget to worry about—this light simply works when you need it most.
Features
- Magnetic mounting
- Waterproof design
- Bicycle rear light
- Suitable for seat tube and saddle
- Smart brake technology
General specs
- Brand: Gaciron
- Model: LOOP-100
- Seller: AliExpress
- ID: 1005005814194267
- Type: Bicycle Rear Light
- Brand: Gaciron
- Model: LOOP-100
- Features: Smart Brake, Waterproof
- Mounting: Magnetic Mounting, Seat Tube, Saddle
- First listed by seller: June 22, 2026
If you are interested in more details, you can find full information on the seller's page.
Shipping options
United States
Similar products comparison
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Gaciron LOOP-100 Smart brake technology
|
CYCLAMI CY200 Smart Brake Sensing
|
Bicycle Tail Light with Smart Brake Sensing Smart Brake Sensing
|
LAOTIE LS80 Smart sensor mode with automatic on/off
|
ROCKBROS WR05
|
Smart Brake Sensing Bike Tail Light Smart brake sensing
|
|
| Brand | Gaciron | CYCLAMI | ROCKBROS | |||
| Model | LOOP-100 | CY200 | WR05 | |||
| Color | ||||||
| Rating | ||||||
| Price | €19.25 | €10.62 | €13.06 | €11.93 | €10.22 | €11.27 |
| Seller | AliExpress | AliExpress | AliExpress | Banggood | Banggood | AliExpress |
| Update | Jun 30, 2026 | Jun 18, 2026 | Jun 24, 2026 | May 9, 2026 | May 9, 2026 | Jun 28, 2026 |
| Features | Smart Brake, Waterproof | Smart Brake Sensing, IPX6 Waterproof, Type-C Charging | 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 | ||
Gaciron LOOP-100 Smart brake technology
Reviews
There are no text reviews yet. If you have experience using this product, please leave a review. It will help other people decide whether this product is right for them.