Aprilia tests the idea of active motorcycle aerodynamics with Concept RS660

As such, it’s a bit of an odd combination – the motor, a 660cc parallel twin that basically removes the two rear cylinders from Aprilia’s existing RSV4 and Tuono 1100, is firmly street focused, as are the ergonomics, which feature a large seat, high semi-handlebars and comfy riding position. That collection of traits would make for a neat little streetbike.

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