Air suspension built right in. The Big Apple started the trend towards the balloon bike over ten years ago: comfortable cycling without any complicated technology! The air cushion of the tires is used as a natural suspension. With approx. 2 bar a Balloonbike rolls wonderfully easily and with full suspension effect. A normal tire with a width of 37 mm must be inflated hard as nails with 4 bar to roll similarly well. Translated with www.DeepL.com/Translator (free version)