Affix Cornus MTB stem review£42.49

Secure and unique

BikeRadar score3/5

This is a smooth, steady stem with a colour-coded clamp chip. The forged shaft and four-bolt front plate give a smooth, clean look at an average 178g for our 100mm version.

The cunning part is the inset Affix clamp, which is a seat-collar-style band. It’s a totally separate unit but is interlocked into the steering section of the stem.

We had our doubts about a single central clamp handling all the turning and bar-fighting work. But it actually feels solid and safe on the trail, even when we use super-wide 780mm bars to maximise leverage.

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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