One23 Extreme Bright Quatro light - in brief review£139.99

Mid-priced price, mid-range power

BikeRadar score2.5/5

One23’s Extreme Bright Quatro light delivers a decent amount of power for the price as long as you can mount the battery OK.

The barrel-shaped head unit attaches securely to either a bar or helmet mount and the four LEDs are arranged to give an OK reach with a super-wide ‘bar end to bar end’ peripheral that works better on slower, twistier trails than flat-out descents.

There’s also a really pronounced halo in the midfield, which can get distracting in twilight/tired eye situations, and the ‘main two power settings then flash’ menu order isn’t ideal.

The two buttons are easy to use even with gloves but the big battery will last most night missions at full power anyway. The broad, rectangular hard case can make the battery hard to home securely, so ideally try before you buy.

This article was originally published in Mountain Biking UK magazine, available on Apple Newsstand and Zinio.

Guy Kesteven

Freelance Writer, UK
Guy started filling his brain with cycle stats and steaming up bike shop windows back in 1980. He worked the other side of those windows from '89 while getting a degree in “describing broken things covered in mud" (archaeology). Dug historical holes in the ground through the early '90s, then became a pro bike tester in '97. Guy has ridden thousands of bikes and even more components the world over since then and can remember them all in vivid, haunting detail. Can't remember where the car keys are, though.
  • Age: 45
  • Height: 180cm / 5' 11"
  • Weight: 68kg / 150lb
  • Waist: 76cm / 30in
  • Chest: 91cm / 36in
  • Discipline: Strict sadomasochist
  • Preferred Terrain: Technical off-piste singletrack and twisted back roads. Up, down, along — so long as it's faster than the last time he did it he's happy.
  • Current Bikes: An ever changing herd of test machines from Tri bikes to fat bikes and everything in between.
  • Dream Bike: His Nicolai Helius AM custom tandem
  • Beer of Choice: Theakston's Old Peculier (not Peculiar)
  • Location: Yorkshire, UK
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