BOOST-R + ReAKT & Peloton Mk2 - Factory Second - Ultimate Sports Engineering Ltd

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Technical Specifications:

LEDs 1 x Red XPE-R
IP Rating IP65
Max Lumens 80 (150 ReAKT Flare)
Battery 1400 mAh Li-Ion
Runtime 6 - 48 Hours
Charging Time 3 Hours
Weight 45g
Material Anodised 6063 Aluminium
In The Box Boost-R ReAKT, Seatpost Mount, USB -C Charge Cable, QS Guide

BOOST-R + ReAKT & Peloton Mk2 - Factory Second


This is a factory second product, so may have some cosmetic issues with the anodising or etch. This does not affect the performance of the product, and comes with our standard 2 year warranty.

The BOOST-R ReAKT, taking the hugely popular form of the Trace R and creating a rear light with twice the burn times with just a 10-gram increase in weight. New quarter turn locking bracket to ensure the BOOST R is safe and secure. ReAKT (Ambient Kinetic Technology) is the latest innovation automatically adapting the light to conditions, flaring up to 150 lumens under braking or entering brighter environments, with the addition of PELOTON mode allowing the BOOST to dim when the light from the rider behind is detected.


Quick Stats:

6 - 48 (FL)
Hours Runtime
80 (150 ReAKT Flare)
Lumens Measured Output
Grams Weight



Rear lighting that flares up automatically under braking. It can also intelligently adapt to the surrounding ambient light conditions to maintain maximum contrast and visibility, for example brightening for street lit areas and moving into sunlight from shade.


Various programs in the lights can easily be selected to offer a choice of run times and modes so you can find the right one for your ride, be it an all-night adventure or an intense blast.


Patented circuitry within the light will reduce power to the LEDs, if they go beyond the optimum temperature, keeping the light as efficient as possible to maximise output and battery capacity. Once the light has cooled, the power is automatically restored.

Fuel Gauge Fuel Gauge

Using a traffic light system remaining runtime is easily monitored at a glance so you’re not caught out. The colour feedback is also used for mode selection, before defaulting back to runtime.

Daybright Daybright

Bespoke pulse pattern designed for daylight use which is more conspicuous than a regular pulse and visible over a kilometre away, even in the brightest conditions. DayBright mode will you noticed. Be Seen be Safe

Peloton Peloton

Enables the rear lights to automatically dim down when the front light of the rider behind is detected , preventing dazzling in a chain gang, it then flares when at the back of the pack for maximum safety.



SRP £100
Output 80 lumens
Weight 45grams
Burntime Min 6 hrs Max 48 hrs (FL)
Battery Capacity 1400 mAh Li ion
Dimensions (mm) Length - 66, Head - 28, Back – 22


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