PRO SX4-W computer review£39.99

Lightweight unit

BikeRadar score3/5Find prices on Bicycle Blue Book

The super-light PRO has a quality feel and works better than we feared at first. It’s a bit of a faff working out which button is which, as there’s no labelling in the instructions. The super-light sticky-backed zip-tie mount fits bars or stems and will squash on to a flat base bar or top tube without worry. The sensor looks tidy, and there are black or white head options.

Despite the small screen, you still get a nice big current speed number, then you can toggle through the secondary speed, distance and time functions. These are pretty small though, and there’s no backlight for nocturnal sessions. We thought the tiny buttons might be an issue with big gloves, but they’ve got a very positive click, and left and right buttons serve the same purpose, for ambidextrous operation.

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: 44
  • 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 tfhan 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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