Tioga Psycho Genius mountain bike tyre review£29.99

Distinctive all-rounder

BikeRadar score3/5

Once-dominant tyre brand Tioga are coming back into the game, with their reversed compound logic creating a distinctive all-rounder in the Psycho Genius. The triangular tread knobs are an extension of the sipe idea that enables a knob to split and widen according to load, with a three-way tapered depth split designed so that each knob distends and increases area in the loaded direction.

The Psycho Genius feels grippier than a standard medium-compound tyre under straight-line braking and driving, even in really wet conditions. It’s predictable across rocks and random debris when it’s upright, and is also buoyant over impacts for its size. It rolls okay too. Tioga’s unconventional compound model means the harder side knobs slip on angled roots and wet rocks though, and leaning into corners is a gamble.

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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