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ROCKBROS REX01 Smart Brake Sensing Bike Taillight: Automatically turns on/off based on light and movement

Smart Brake Sensing Bike Taillight — Smart Bike Light, ROCKBROS

For the everyday commuter or weekend rider who wants to be seen without fuss, this taillight is your silent guardian. It’s not just about safety; it’s about effortless peace of mind on busy streets or dim trails. The smart brake sensing kicks in the moment you slow down, giving drivers that extra split-second notice—like a built-in reflex that works before you even think to signal.

You get five lighting modes to match any ride, from a steady glow for city cruising to a flashing pattern that cuts through fog. The IPX6 waterproof rating means a sudden downpour won’t leave you in the dark. With a 500mAh battery and USB-C charging, it powers up quickly and lasts through long adventures, so you can focus on the road ahead. Compact at 42g, it mounts securely with included brackets, staying put on bumpy paths.

Features
  • Five lighting modes with 9.5-30 hour battery life
  • Type-C USB charging for convenience
  • Compact and lightweight at 1.48 oz
  • IPX6 waterproof rating
  • Smart light sensing for automatic operation in dark environments
  • Automatically turns on/off based on light and movement

General specs

  • Brand: ROCKBROS
  • Model: REX01
  • Seller: Banggood
  • ID: 2018322
  • Size: 3.15 x 1.97 x 2.05 inches
  • Brand: ROCKBROS
  • Model: REX01
  • Weight: 0.093 lbs
  • Material: ABS PC
  • Lamp beads: 0603
  • Battery Life: 9.5-30h
  • Charging Port: USB-C
  • Lighting Modes: 5
  • Smart Features: Auto on/off based on light intensity and movement, Auto light in dark environments, Auto rest in light environments
  • Battery Capacity: 500mAh
  • Package Contents: Rear Light, Hexagonal Wrench, Type C Charging Cable, Seat Pole Bracket, Bow Bracket, Ring
  • Waterproof level: IPX6
  • First listed by seller: 2/23/26

If you are interested in more details, you can find full information on the seller's page.

$16.97
Last price update: 2/23/26
Available to order

Shipping options

Delivery to United States
Available

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Brand ROCKBROS ROCKBROS CYCLAMI ROCKBROS OFFBONDAGE
Model REX01 CY120 ATS-Q6
Color
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Price $16.97 $12.97 $14.97 $11.97 $12.97 $16.97
Seller Banggood Banggood Banggood Banggood Banggood Banggood
Update Feb 24, 2026 Feb 24, 2026 Feb 24, 2026 Feb 24, 2026 Feb 24, 2026 Feb 24, 2026
Size 3.15 x 1.97 x 2.05 inches 1.34 x 1.34 x 1.18 inches 1.54x0.83 inches 1.42 x 1.14 inches
Weight 0.093 lbs 0.066 lbs 0.06 lbs 0.099 lbs Approx 0.077 lbs
Material ABS PC CNC Aluminum Alloy, Plastic Carbon Fiber, PCB ABS PC Aluminum Alloy ABS PC
Lighting Modes 5 5 Gears Single Flash, Double Flash, Breathing Flash, Steady On, Running Lights, Spinning Wheels Single Flash, Double Flash, Breathing Flash, Rotating Flash, Steady on
Battery Capacity 500mAh 400mAh 400 mAh 400mAh
Waterproof level IPX6 IP65 IPX5 IPX6
Note Color Variation Possible, Manual Measurement Deviation 0.39-0.79 inches Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! Please allow 1-2mm (0.039-0.079 inches) measuring deviation due to manual measurement. Color may vary slightly due to monitor/light effects, Allow 0.39-0.79 inches measuring deviation
Features High Brightness Safety Warning, Dual Brackets, Drop Wear Resistant, Auto and Manual Mode, Intelligent Brake Sensing, Light Sensing, Vibration Start/Stop, USB Charging, IPX6 Waterproof, Optical Lens, Battery Indicator with 4 Lights, Super Lightweight Instant Activation, Vibration Wake Up, Energy Saving Mode, Multiple Light Modes, Waterproof Design Smart brake sensing technology, Ultra bright LED light for enhanced visibility, Easy to install and remove, USB rechargeable for convenience, Water resistant for all weather use 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
Product Name Q1MAX Rear Light Smart Brake Tail Light for Bicycles BIKIGHT Smart Brake Sensing Bike Taillight, Highlight Warning Taillight Pixel Smart Brake Tail Light
Package Includes 1 x Tail Light, 1 x Charging Cable 1 x Tail Light, 3 x Nylon Ties, 2 x Rubber Bands, 1 x Charging Cable Tail Light, USB Charging Cable 1 x Tail Light, 1 x Charging Cable, 1 x Mounting Bracket, 4 x Cable Tie, 1 x User Manual
Smart Brake Sensing Bike Taillight — Smart Bike Light, ROCKBROS

ROCKBROS REX01

$16.97

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