Joe’s No Flats Eco Sealant review£9.99

Eco friendly tyre sealant

BikeRadar score4/5

While the name has similarities with other sealants, Joe’s Eco is fine if you’ve got a latex allergy, and there’s nothing in it that will kill fish. 

Granular/gritty ‘micro particles’ help block holes faster and more permanently, and it will also block bigger holes than a runnier sealant. All of this is really noticeable in use. 

It seals tubeless-ready setups quickly and has bridged bubbling gaps on tyre/rim pairings that weren’t sealing with lighter Latex-based liquids. We’ve had no issues with thorn or cut punctures either, although comparing that to other sealants is always a slightly random process. 

At under £10 for 240ml it’s definitely good value, though, and the bottle and tube makes getting the sealant in there easy whether the valve stem is removable or not. The only downsides are more lumps inside the tyre after a while, so you need to clean it out and refresh it a bit more regularly.

This article was originally published in Mountain Biking UK magazine, available on Apple Newsstand and Zinio.

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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