Geax Barro Marathon TNT review£25.00

They might be part of a premier road brand, but Geax aren't afraid of a bit of muck.

BikeRadar score4/5

Geax are a name that are gradually getting the recognition they deserve, thanks to a solid range of well-made tyres like the Barro.

Again it's not a specific mud tyre, and the relatively small alternate bar tread looks more summery than slippery specific. To be fair it struggles in deep mud if you're braking or powering hard and it's a slider rather than a sticker in off-camber situations.

Tubeless-ready TNT design means you can run lower pressures for more ground contact and a smoother, more sure-footed ride without risking extra punctures. You will have a fight getting the tight bead on and off though.

It clears fast and rolls well which helps keep momentum up in mixed conditions and means that it rides a lot lighter than it actually weighs.

Racers should note that the Barro Extreme Mud is an impressively tough and tenaciously grippy 1.7in skinny once you're used to the initial 'riding on ice skates' feel.

Price of both versions is good considering the toughness and tubeless-ready versatility.

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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