On-One 3D stem review£9.99

Best value stem out there

BikeRadar score4/5

Proof that good design doesn’t have to cost a fortune, or even more than a tenner, comes from Doncaster dons On-One.

The 3D stem is pretty light at 147g for a 100mm version, with the forged body and open frontplate providing enough stiffness strength for cross-country/trail use.

The four-bolt front and twin-bolt opposed rear are plenty secure and there are no sharp edges. It comes in loads of lengths and rises, plus there’s a heavier duty ‘456’ version. It's slightly flexy though, and only comes in the smaller 25.4mm standard diameter.

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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