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 alsoHonda MotorcyclesMotorbike newsNewsHonda H’Ness CB350 Sells 1000 Units in 20 Days 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.