Bicycle seat with a red light on a white background
Fenix BC06R bike taillight and its box on a mossy rock
Fenix BC06R taillight glowing red on a cyclist riding at night
Fenix BC06R brake sensing light shown lit on a bike at night
Fenix BC06R taillight on a seatpost and on the saddle rails, two mounting options
Fenix BC06R tool-free assembly steps for seatpost and saddle rail mounts
Fenix BC06R taillight charging with a USB-C cable
Fenix BC06R output modes shown on a road bike at night
Fenix BC06R taillight in use on mountain and road bikes
Fenix BC06R single button being pressed on a bike seatpost
Fenix BC06R 270 degree lighting angle seen from a car behind a cyclist
Fenix BC06R runtime graphic over a city street at night
Fenix BC06R taillight on a seatpost with its battery status indicator
Fenix BC06R taillight lit in wet grass, showing its IP66 water resistance
Fenix BC06R retail box and everything included in the package
Fenix BC06R technical specifications chart
Fenix BC06R taillight used by riders on road, trail and night rides
Fenix BC06R taillight mounted on a black seatpost, side angle
Fenix BC06R taillight on a seatpost seen from behind the bike
Fenix BC06R taillight body, side view showing the rubber strap mount
Fenix BC06R taillight with the mounting strap flipped up
Fenix BC06R taillight connected to its USB-C charging cable
Fenix BC06R taillight shown from the lens side and the back side
Fenix BC06R taillight lens and rear housing, second product view

Fenix BC06R Smart Bike Taillight, Brake Sensing Rear Light

$34.95
Shipping calculated at checkout Shipping and returns

Shipping: The rate for this item is calculated at checkout from your address. It is not part of the $199 free shipping offer.

Returns: 30 days on new items in the original packaging. If the item arrived damaged or defective, or we sent the wrong item, we cover the return shipping, freight included, and there is no restocking fee. Any other return ships back at your cost with a restocking fee of 5% of product cost.

Freight deliveries: check the shipment and note any damage on the delivery receipt before you sign. After signing, we cannot accept a return for a change of mind or for damage that was not noted. A fit problem from our listing is still covered.

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Description

The Fenix BC06R is a smart-brake bike taillight. Brake sensing boosts it to a 90 lumen burst the moment you slow down, alerting drivers up to 100 m back.

It mounts to most seatposts (25.4 to 31.6 mm) and saddle rails (39 to 50 mm), and a 270 degree lighting angle keeps you visible from nearly every direction. Flashing and spinning modes, up to 24.5 hours of runtime on low flash, 2 hour USB-C charging and IP66 waterproofing round it out.

Why it works

  • Brake sensing with 90 lumen burst
  • Visible up to 100 m
  • 270 degree lighting angle
  • Flashing and spinning modes
  • Up to 24.5 hours on low flash
  • USB-C charging in about 2 hours
  • IP66 waterproof

Fit

Mounts: seatposts 25.4 to 31.6 mm, or saddle rails 39 to 50 mm apart.

Specs

  • Max output: 90 lumens (brake)
  • Battery: built-in 560mAh
  • Charging: USB-C, about 2 hours
  • Water rating: IP66
  • Size: 1.5 x 1.5 x 1.5 in (excluding mount)
  • Weight: 1.57 oz (44.5 g)

In the box

  • BC06R taillight
  • Seatpost mount and strap
  • Saddle rail mount with 4 fastening ties
  • USB-C charging cable
  • User manual and warranty card

Warranty

Fenix Limited Lifetime Warranty. Opening the sealed head voids the warranty.

Shipping and returns

Ships by ground as a large parcel to the lower 48 states.

Shipping policy | Refund policy

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Questions

How bright is the BC06R and how long does it run?
Fenix rates the BC06R at a maximum of 90 lumens with up to 24 hours 30 minutes of runtime from its built-in 560mAh battery. Its CREE XP-E2 red LEDs reach a beam distance of 328 feet (100 meters), and a 270 degree lighting angle gives wide visibility on the road.
What happens when I brake with the BC06R on?
Fenix says a sudden reduction in riding speed automatically triggers Braking mode, which switches the light to high output. After two seconds the light recalls the previously used output. A memory circuit also remembers your last mode, excluding Braking, so the BC06R comes back on where you left it.
Which lighting modes does the BC06R offer?
Eight, per Fenix. A single click cycles through low constant on, low slow flash, low fast flash, high constant on, high slow flash, high fast flash and spinning, and the eighth is the automatic braking light. Press and hold the switch for 0.5 seconds to turn the light on or off.
How do I charge the BC06R taillight?
Turn it off, open the anti dust cover and plug in the USB Type-C cable Fenix includes. The indicator shows red while charging and green when full, about 2 hours from empty. Close the cover afterward to keep it dustproof and waterproof. Fenix says Low constant on still works while charging, though charging takes longer.
Does the BC06R go on a seatpost or saddle rails?
Both work. Fenix includes a seatpost mount with mounting strap for seatposts 25.4 mm to 31.6 mm in diameter, plus a saddle rail mount with four fastening ties for rails spaced 39.0 mm to 50.0 mm apart. A quick release structure lets you take the light on and off its mount.
How weatherproof is the BC06R?
Fenix rates it IP66 and impact resistant up to 1.5 meters. It is a 1.5 inch (38 mm) cube weighing 1.57 oz (44.5 g) with battery, behind a polycarbonate lens. For storage, Fenix says to recharge it every four months, and it backs the light with a Limited Lifetime Guarantee from Fenix Lighting USA.