Aprilia seems to have faith in the supersport segment with the final unveiling of its lightweight RS660 to be followed by a naked Tuono version next year. Ever since the RS660 concept hit the EICMA stage in Milan a year ago, there has been a lot of interest in this bike in a segment that is diminishing. Lightweight fun To many, supersport means lightweight and a good power-to-weight ratio. The Aprilia RS660 won’t disappoint. It is powered by two cylinders from a Tuono/RSV4 1100 engine as a 660c parallel twin. Weighing in at 169kg with 100hp (75kW) of power, that’s a formula for fun! But Aprilia doesn’t just see it as a track weapon, but also as an everyday commuter. In fact, its five riding modes spell it out: Commute, Dynamic, Individual (we imagine that’s a customisable mode), Challenge and Time Attack. 2021 Aprilia Tuono 660 concept There is not a lot of information available yet, so we can only speculate on what all that means. It has adjustable Kayaba suspension, a double aero fairing and smartphone connectivity with navigation display on the instruments.See alsoHarley-DavidsonMotorcycle NewsWhy the LiveWire Del Mar Sold Out in Under 18 Minutes Lightweight twins It will be the first of a new platform of lightweight 660 twins. The first will be a Tuono naked version like the concept presented at EICMA. It is slightly downtuned at 96hp (71kW). 2021 Aprilia Tuono 660 concept There will also be a restricted version that may come in under Australia’s LAMS rules for novice riders. And, who knows, maybe it will be followed by an adventure, cafe racer or scrambler version.