TraceR 4 ReAKT Rear Light
TraceR 4 ReAKT Rear Light
TraceR 4 ReAKT Rear Light
TraceR 4 ReAKT Rear Light

TraceR 4 ReAKT Rear Light

200 Lumens | 40 Hour Runtime | 35g

EXPTRACER4RA
  • In stock
  • Inventory on the way
£75.00 GBP
£75.00 GBP
Shipping calculated at checkout.
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Description

Most rear bike lights do one thing at one brightness and hope for the best. The TraceR 4 ReAKT pays attention. It flares up when you brake and when the light around you gets brighter, then eases off for the rider sitting on your wheel. All of that comes from a 35g package delivering up to 200 lumens, charged over USB-C in 90 minutes. A CNC-machined aluminium body and IP67 rating mean it shrugs off a British winter. Pair it with the Trace 4 front light and you are properly visible, day or night, at either end of the bike.

In the box:TraceR 4 Reakt , Seatpost Bracket, USB - C Charge Cable, QS Guide.

Compatible brackets

TraceR Saddle Rail Bracket
TraceR Saddle Rail Bracket
£10.00
TraceR Aero Seat Post Bracket
TraceR Aero Seat Post Bracket
£15.00
Stud Bracket (for Trace)
Stud Bracket for TraceR
£20.00

lets talk tech

Battery Status

A single press of the power button while the light is off displays the battery level for five seconds, providing a quick and convenient way to stay informed and prepared for every ride. This battery status is also displayed when the light is turned off.

Size

Engineered with a sleek, adaptable form factor, it integrates effortlessly into any environment while providing exceptional performance on demand.

Side visibility

Our optically clear 270° Commute Lens enhances side illumination, ensuring you stand out from every angle on the road. Whether you’re navigating dark paths or city streets, this setup delivers maximum visibility, safety, and rider confidence.

Weatherproof

Class leading waterproof ratings mean you will never be let down in any situations, and you can always depend on your light

Weight

Delivers up to 40 hours of runtime from a product weighing only 38 grams with no compromise to strength or durability.

Engineering

Daybright Flash

Our bespoke DayBright pulse pattern is specifically designed for daylight use, making it more conspicuous than a standard pulse and visible over a kilometre away, even in the brightest conditions. With DayBright mode, you’ll be noticed. Be Seen, Be Safe.

USB-C Charging

Offers fast and convenient USB-C charging, allowing you to power up quickly and get back on the road without delays.

Frequently asked questions

ReAKT is Exposure's reactive light technology. It automatically increases the TraceR 4's output in two situations: when you brake, and when the ambient light around you gets brighter.

Braking gives the vehicle behind an instinctive signal that you are slowing. The ambient light response keeps you visible in bright sun and low winter glare, which is exactly when a fixed-output rear light struggles to stand out.

It works on its own, with nothing to press while you are riding.

Peloton mode senses the light of a rider following you and automatically reduces the TraceR 4's output to avoid dazzling them. It is built for club runs, chaingangs and group riding, where a bright rear light is genuinely unpleasant for whoever is on your wheel.

ReAKT and Peloton do not run at the same time, and you can switch either on or off depending on how you are riding that day.

Comfortably, yes. Rear lights work differently to front lights: the job is being seen, not seeing.

200 lumens in DayBright pulse is bright enough to stand out in daylight, while 75 lumens constant suits lit roads after dark. More output is not automatically better on a rear light, which is precisely why Peloton mode exists.

Built to last, serviced to endure

We offer an extra year warranty to all purchases made through our site. This means you will have 3 year warranty on all of our lights and the LED’s inside are covered by a lifetime guarantee! Ensuring peace of mind with every purchase. 

Our lights are designed to last a lifetime, so we carry out servicing and repairs on lights well beyond the warranty period - simply get in touch if you ever need us - we've got you covered!