Schwalbe Big Apple HS 430 air suspension directly installed. Ten years ago, the Big Apple started the trend towards balloon bikes: comfortable cycling without any complicated technology! The air cushion of the tyres is used as a natural suspension. with approx. 2 bar, a Balloonbike rolls wonderfully easily and with full suspension effect. A normal tyre with a width of 37mm has to be inflated hard as nails at 4 bar to roll similarly well.