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Tom Wieckowski

Gravaa has been declared bankrupt, was the adjustable tyre inflation system simply ahead of its time?

A Gravaa front hub.

Gravaa, the manufacturer of the KAPS (Kinetic Air Pressure System), was declared bankrupt this week by a Dutch court, in news first reported by Road.cc and other media outlets.

Gravaa's system enabled the user to adjust tyre pressures whilst riding, and we first reported on a Jumbo-Visma trial of the technology back in early 2023. The system, however, had been in development for several years before this.

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