How does it feel to be an hour’s ride from the nearest town & not have to worry about getting a puncture? Amazing. Our revolutionary airless tyres are 100% puncture-proof. Made from a closed-cell-polymer-foam material they have no inner tube (that's right, no inner tube). They are super light-weight, low rolling-resistance, comfortable & have amazing grip in all riding conditions. A game-changer? 100%. The 700x 23c R-grade Tannus Solid Tyre, the most modern solid tyre in the world. The perfect hardness 110psi equivalent, incredible grip & extremely low rolling resistance.