BALLOON BIKES roll on much wider tyres and run on the principle of the tyre pressure suspension. The voluminous air cushion from the special tyres works like natural suspension and so it doesn’t need any expensive suspension system. A simple idea with great effect. As with a balloon bike you can ride more relaxed, easily and it's much healthier. (see also balloonbikes.com). >> Comfort, weight-saving (compared to suspension), lower rolling resistance, greater puncture protection.