Tannus Armour has been developed with our patented Aither technology. A multi-cell foam compound that is lightweight, flexible yet incredibly durable. Aither is the culmination of 10 years of Tannus development within the tyre industry Tannus Armour is a foam insert that sits between your inner tube and tyre, providing an additional layer of protection against 4 main types of damage. Features Lower psi The Armours near 360° bead-to-bead, protection gives sidewall structure to the tyre, allowing us to ride at much lower pressures without the tyre deforming and becoming slow and difficult to handle. Puncture Protection Armour eliminates 90% of all punctures due to its reinforced sidewall and underside protection. Increased Grip Run at lower pressures for increased grip in wet conditions and loose rock. Increased Comfort Armour absorbs vibration for a smoother, more comfortable ride. Run Flat If you do get a flat tyre you can still ride for a limited period at up to 6mph without damaging your wheel. Fast Rolling Engineered to minimise rolling-resistance (drag), Tannus Armour provides the ultimate balance of speed and protection. Easy Installation Installing the Armour is as quick and easy as installing a regular tyre and is maintenance free. Why Choose Armour? Puncture Protection Ride over thorns, nails, glass and any other sharp objects without getting a flat. Just carry on riding. Increased Comfort Armour absorbs the vibrations on your ride, meaning a smoother, more comfortable ride. Still Ride Home If your tyre does go flat for some reason, you can still cycle home with a flat tyre without damaging your rim.