 Greeves) used a version of the swinging arm for front suspension on their motocross designs.A single-sided version of the idea is also used in motor scooters such as the Vespa.The Hub-center steering as developed by Ascanio Rodorigo, on a concept associated to Massimo Tamburini is a complex front swingarm alternative system that entails suspension and steering, as seen in projects such as Bimota Tesi and Vyrus motorcycles.