Thorns or glass that may penetrate the tyre are blocked from the inner tube.
Proven Tough: For over two decades Mr. Tuffy has been the world's leading flat-tyre preventive with several million satisfied cyclists.
Lightweight: Weighs less than liquid fills and thorn-resistant tubes.
Reusable: Use from bike to bike.
Easy Installation: No gooey mess.
Absolutely, Positively - Will not cause tyre or tube damage - or loosen spokes. Please note - this is Mr. Tuffy's claim and is not at this stage a Moruya Bicycles assertion. We are trialling the Mr. Tuffy liners to see if they have less tendency than other tyre liners to rub through the tubes over time where they have been cut.