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The Big Ben Plus started off the Balloonbike trend many years ago. Comfortable cycling without using complicated technology! Air cushion tyres are used as natural suspension. Inflated to around 2 bar, a Balloonbike rolls really easily with a full suspension effect. A normal tyre with a width of 37 mm must be inflated to a rock-hard 4 bar in order to roll similarly well. This Plus version is equipped with Schwalbe's GreenGuard puncture protection for additional protection against flats.