All electronic aids like traction control, riding modes, wheelie control are now able to switch modes on the go.The quickshifter system is now a bidirectional one, with the ability to downshift without closing the throttle. All these upgrades to the electronics meant that the new RSV4-RF is a full second quicker around the race track when compared to its predecessor. (As claimed by Aprilia) The Tuono supernaked got a major upgrade in 2015 with an all new 1100cc engine and a sleuth of riding aids. Aprilia has applied all the electronic upgrades of the RSV4 to the Tuono (Minus the open throttle quickshifter), upping the ante in the world of supernakeds and tackling the likes of the Yamaha MT-10 SP and the Suzuki GSX-S1000. Power is rated at 175 HP and both the bikes are Euro 4 Compliant.