Quietkat Mr. Tuffy Tire Liners 4XL


  • Fits 26-29″” x 4.1″- 5″ Plus-Size tires
  • Advanced micro-shell technology features a hardened protective outer layer and an ultra-soft inner layer to cushion the tube
  • Weighs less than liquid sealants or thorn-resistant tubes
  • Easy to install–no gooey mess
  • Contributes to a smooth, stable ride


To keep weight down, tire manufacturers use 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 bike 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.