The new Gravelbike brand Rondo calls its Ruut the "Swiss army knife" of the Gravel wheels. What's this all about? Very simple: Thanks to the innovative Vario geometry, the bike can be transformed from an enduring touring bike into a lively racer within seconds. For this purpose, the Rondo Ruut has an adjustable inlet in the axle mount, which allows the driving position to be adjusted to the driving style - in a few easy steps and within seconds. Two bikes in one doesn't work? You thought wrong!