Description

SPECIFICATIONS

Battery: Lithium battery

Body Material: Aluminum Alloy

Brand Name: ROCKBROS

Hign-concerned Chemical: None

Intelligent sensing: Y

Lamp beads: LEDLamp Bead/COB Lamp Bead

Material: Aluminum alloy/ABS

Model Number: R

Mounting Placement: Seatpost

Origin: Mainland China

Power Supply: Battery

Support Dimmer: 5-8 files

Type: Tail Light

Waterproof Level: ipx 6

Weight: R1:30g, R3:33g, R4:29g, R5:55g

Product Features

1.Synced breathing
2.Brake sensing, stationary sleep
3.Vibration on/off
4.Day/night light sensing
6.Team function tail lights

Summon Friends, Synced Breathing

Double-click to enter sync mode, automatically matching the same frequency breathing light with friends who have R-series taillights when riding close to each other.

Brake Sensing for a Safety Boost During Night Rides

When braking or slowing down during cycling, the tail light automatically brightens and lasts for 3 seconds, conveying deceleration information to the rear, enhancing warning visibility.

Three-level Adjustable Brightness, Stand Out on the Street

Stationary Sleep; Vibration Auto-start

In Smart Mode, the tail light goes into sleep mode after 30 seconds of inactivity and lights up automatically upon detecting vibrations.

Day/Night Sensing

Lights extinguish in bright conditions and illuminate in low light.

Basic Model with Seven-color Breathing Light

Seven-color breathing light flashes in breathing light mode.

Built-in Lithium Battery, Convenient Type-C Charging

Comes with USB-Type-C charging cable.

Seat bow/Seatpost, Two Installation Options

Equipped with two installation brackets for flexible placement.

Dust and Rain are No Worries

Please tighten the charging port dust plug and the taillight bracket to ensure waterproof performance; avoid immersion in water.

Real Shots of Various Models


Product form
  • rockbrosclothing

ROCKBROS BicycleTaillight Smart Brake Sensing Day/Night Sensing Waterproof Type-C Cycling Taillight Bike Accessories R Series

    $29.99

    • Shipped today? Order within: Aug 22, 2025 17:00:00 -0700

      Free Shipping $69+ | 365-Day Easy Returns

      TECHNICAL Features
      Breathability
      Aerodynamic
      Weight: 135 g (M)
      UPF: 50+
      Use temperature: 25–38 ºC
      Fitting: ULTRA FIT
      Fabric & Details

      Crafted with premium Italian fabric – Carvico Revolutional™ – this jersey delivers performance and comfort in one. The main fabric is made from 88% recycled polyester and 12% elastane (125 GSM), offering quick-dry capability, 4-way stretch, and UPF 50+ sun protection.

      • Lightweight and aerodynamic design
      • Self-locking YKK zipper
      • Silicone grippers at the hem for a secure fit
      • Three rear pockets for snacks and tools
      • Reflective elements for better visibility on the road
      • OEKO-TEX® & bluesign® certified
      PRODUCT CARE
      • Machine wash cold (Max 30°C / 86°F)
      • Turn garment inside out and zip up before washing
      • Use a laundry bag whenever possible
      • Use mild detergent
      • Do not bleach
      • Do not iron
      • Do not dry clean

      Description

      SPECIFICATIONS

      Battery: Lithium battery

      Body Material: Aluminum Alloy

      Brand Name: ROCKBROS

      Hign-concerned Chemical: None

      Intelligent sensing: Y

      Lamp beads: LEDLamp Bead/COB Lamp Bead

      Material: Aluminum alloy/ABS

      Model Number: R

      Mounting Placement: Seatpost

      Origin: Mainland China

      Power Supply: Battery

      Support Dimmer: 5-8 files

      Type: Tail Light

      Waterproof Level: ipx 6

      Weight: R1:30g, R3:33g, R4:29g, R5:55g

      Product Features

      1.Synced breathing
      2.Brake sensing, stationary sleep
      3.Vibration on/off
      4.Day/night light sensing
      6.Team function tail lights

      Summon Friends, Synced Breathing

      Double-click to enter sync mode, automatically matching the same frequency breathing light with friends who have R-series taillights when riding close to each other.

      Brake Sensing for a Safety Boost During Night Rides

      When braking or slowing down during cycling, the tail light automatically brightens and lasts for 3 seconds, conveying deceleration information to the rear, enhancing warning visibility.

      Three-level Adjustable Brightness, Stand Out on the Street

      Stationary Sleep; Vibration Auto-start

      In Smart Mode, the tail light goes into sleep mode after 30 seconds of inactivity and lights up automatically upon detecting vibrations.

      Day/Night Sensing

      Lights extinguish in bright conditions and illuminate in low light.

      Basic Model with Seven-color Breathing Light

      Seven-color breathing light flashes in breathing light mode.

      Built-in Lithium Battery, Convenient Type-C Charging

      Comes with USB-Type-C charging cable.

      Seat bow/Seatpost, Two Installation Options

      Equipped with two installation brackets for flexible placement.

      Dust and Rain are No Worries

      Please tighten the charging port dust plug and the taillight bracket to ensure waterproof performance; avoid immersion in water.

      Real Shots of Various Models


      Details That Define the Ride

      • Precision Knit

        Precision Knit

        Micro-knit surface ensures balanced stretch, breathability, and next-to-skin comfort.

      • Clean Stitching

        Clean Stitching

        Flatlock stitching reduces friction for smoother, longer rides.

      • Freedom Fit

        Freedom Fit

        Smooth cuffs contour gently for zero pressure on the arms.

      • Light as Air

        Light as Air

        High-tech fabric delivers a barely-there feel for effortless rides.

      • Free Shipping

        Free Shipping

        Free shipping on all orders — no minimum required

      • Customer Service

        Customer Service

        One-on-one support with 100% email response guarantee

      • Two-Year Warranty

        Two-Year Warranty

        Free repairs or replacements within the 2-year warranty period

      • Secure Payment

        Secure Payment

        Your payment is encrypted and processed securely

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