ROCKBROS R3 Smart Brake Sensing Bike Taillight: Smart brake light with automatic detection
For the commuter navigating city streets or the weekend rider on rural paths, the ROCKBROS R3 tail light is your reliable partner for visibility. While many bike lights focus on brightness, this one prioritizes smart safety, giving you confidence that drivers notice you, especially during sudden stops.
Its intelligent brake light activates automatically when you slow down, flashing brighter to alert traffic behind you. The mic picks up the subtle vibration of your bike decelerating, so the alert pops up before a car gets too close. With four lighting modes, you can choose a steady glow for dark trails or a flashing pattern for busy roads. The IPX6 waterproof rating means it handles rain and splashes without fail, and the Type-C rechargeable battery eliminates the hassle of disposable cells. Install it easily on your seat post with the included bracket, and ride knowing you're seen.
Features
- 4 lighting modes
- IPX6 waterproof rating
- Type-C rechargeable battery
- Vibration sensor for safety
- Easy installation with dual bracket design
- Smart brake light with automatic detection
General specs
- Brand: ROCKBROS
- Model: R3
- Seller: Banggood
- ID: 2016069
- Brand: ROCKBROS
- Model: R3
- Weight: 0.073 lbs
- Features: Dual Bracket Design, Same Frequency Induction Brake Light, Smart Brake Light with Automatic Detection, Easy Installation, Wear and Tear Resistant, Versatile for All Bicycle Types
- Material: Aluminum Alloy, Plastic Base
- Dimensions: 1.18 x 1.34 x 1.34 inches
- Lamp beads: COB Lamp Bead
- Battery Type: 3.7V 300mAh Lithium Battery
- Lighting Modes: 4
- Package Includes: 1 x Taillight, 1 x Holder, 1 x Charging Cable
- Waterproof Rating: IPX6
- Measurement Tolerance: 0.39 x 0.79 inches
- Color Notice Variation: Display Differences May Occur
- Applicability Post Seat: 1.5 x 2.13 inches
- First listed by seller: February 23, 2026
If you are interested in more details, you can find full information on the seller's page.
Price History for seller Banggood
Shipping options
United States
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| Brand | ROCKBROS | ROCKBROS | WEST BIKING | ROCKBROS | CYCLAMI | |
| Model | R3 | Q5mini | WR05 | ROCKBROS Q5 | CY120 | |
| Color | ||||||
| Rating | ||||||
| Price | €14.49 | €15.34 | €40.00 | €10.22 | €16.19 | €11.93 |
| Seller | Banggood | Banggood | Joom | Banggood | Banggood | Banggood |
| Update | May 9, 2026 | May 9, 2026 | Jul 16, 2026 | May 9, 2026 | May 9, 2026 | May 9, 2026 |
| Weight | 0.073 lbs | 0.075 lbs | 0.11 lbs | 0.12 lbs | 0.06 lbs | |
| Features | Dual Bracket Design, Same Frequency Induction Brake Light, Smart Brake Light with Automatic Detection, Easy Installation, Wear and Tear Resistant, Versatile for All Bicycle Types | Dual bracket design for easy installation, Smart tail light with brake sensing function, Compact and lightweight, Suitable for mountain bikes and road bikes, Enhances visibility for night cycling | Smart Brake Sensing, High Visibility LEDs, Tool-Free Installation, Waterproof Design, Long Battery Life | Vibration Sensor Wake-up, Automatically turn on/off based on light intensity and motion, Auto sleep mode for power saving, Seat rail mounting, 4 flash modes, 20 hours runtime, Type C charging, Battery indicator flashes every 6 seconds, Compact and lightweight design, IPX6 waterproof | Instant Activation, Vibration Wake Up, Energy Saving Mode, Multiple Light Modes, Waterproof Design | |
| Material | Aluminum Alloy, Plastic Base | Aluminum Alloy | ABS | Aluminum Alloy, 6061 Aluminium alloy | Carbon Fiber, PCB | |
| Dimensions | 1.18 x 1.34 x 1.34 inches | 2.36 x 2.09 x 1.50 inches | 1.57 x 1.34 x 1.34 inches | 1.5 inches x 1.16 inches | ||
| Lighting Modes | 4 | Low, Mid, High, Low High Power Flash, Fast Flash, Breathable Light | Single Flash, Double Flash, Breathing Flash, Steady On, Running Lights, Spinning Wheels | |||
| Waterproof Rating | IPX6 | IPx6 | IPX6 | |||
| Battery Capacity | 3.7V 250mAh | 500mAH | 400mAh | |||
ROCKBROS R3 Smart brake light with automatic detection
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