Ride Flat Free! Mr. Tuffy is a remarkable tire liner made of durable, lightweight polyurethane. When inserted between the bike 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.


World’s Most Eco-Friendly Tire Liners - All Mr. Tuffy Tire Liners are now Biodegradable.


Recyclable - Use from bike to bike - and package is 100 % recyclable as well.


Lightweight - Weighs less than liquid fills and thorn-resistant tubes. New Ultra Lite weighs even less. See left.


Easy Installation - No gooey mess.


Absolutely, Positively - Will not cause tire or tube

damage-or loosen spokes


Mr. Tuffy Tire Liners are available to fit any size tire.


Look for these cleverly designed packages at your local bike store.

About Mr. Tuffy