To keep weight down, tire manufacturers are using thinner rubber to make Fat Tires. This, plus the low recommended inflation pressure of 5-15 lbs makes them more susceptible to flats from road hazards, including thorns, glas...

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Product Review

To keep weight down, tire manufacturers are using thinner rubber to make Fat Tires. This, plus the low recommended inflation pressure of 5-15 lbs makes them more susceptible to flats from road hazards, including thorns, glass, nails, and even rocks. Mr. Tuffy XL Series provides serious flat prevention for Fat Tire users. When placed between tire and tube, it provides a protective layer between road hazards and the inner tube. Thorns or glass that may penetrate the tire are blocked from the inner tube. Proven Tough - For over three decades Mr. Tuffy has been the world's leading flat-tire preventive with Millions upon Millions of satisfied cyclists. Easy Installation - No gooey mess. Absolutely, Positively will not cause tire or tube damage or loosen spokes

  • Enhanced tire protection with 2-ply rubber construction designed specifically for FatBikes, providing superior puncture resistance against nails, thorns, and debris.
  • Universal fit for 26", 27.5", and 29" tires (2.35-3.0 inch width), ensuring compatibility across a wide range of fat bike models and styles.
  • Made in the USA with materials, delivering durability, reliability, and long-lasting performance in rugged riding conditions.
  • Innovative FLIM technology and reinforced layers help prevent flats, reducing downtime and maintenance for fat bike riders in off-road and trail environments.
  • Bright Lime color enhances visibility and style, making it easy to identify and adding a custom touch to your fat bike setup.

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