The state-of-the-art, liquid cooled, single-cylinder, four-stroke 375ccm engine with twin overhead camshafts, four valves and electronic fuel injection, already equipped in the Duke 390 provides outstanding power and thanks to the balancer shaft, delivers the highest level of smoothness. Because of the KTM-typical compact design with stacked transmission shafts the engine has an unbelievable low weight of 36kg. Combine that with technical details like a forged piston, Nikasil-cylinder-coating and forced feed lubrication with power-promoting body-evacuation and you get an engine which provides a remarkable 44hp. The engine is equipped with an electric starter powered by a 12V/8Ah battery.
Saves power, helps in slides: The new slipper clutch not only opens when the engine back-torque becomes too high, it also closes with the force of the clutch springs when you open up the throttle. The former prevents annoying rear wheel chatter when braking sharply or decelerating – and gives the wheel just that bit of braking for a controlled rear wheel slide. The latter allows the clutch to be pulled and controlled with the little finger – which saves energy when riding.
The guarantee for smooth throttle response, not just no throttle control cable: The RC 390´s ride-by-wire system ensures perfect application of the readily available and plentiful torque. It also electronically translates the throttle commands of the rider into throttle valve positions perfectly suited to the riding conditions. The DBW system is fully compliant with the strict DIN 26262 safety standard from the automobile sector.
The forged aluminum triple clamps are eye-catchers and together with the clip on handlebars guarantee a pure supersport racing feeling.
KTM in cooperation with Brembo developed a powerful, excellent to dose brake-system which allows the rider to be always in full control of the RC. A four piston radially bolted caliper in combination with a bigger single brake disk (320mm diameter) in the front and a single piston floating caliper with a single brake disk (230mm diameter) for the rear wheel guarantee excellent breaking reaction even in the sportiest manner of riding.
Pillion ride seat
In order to make no compromises in terms of supersport look the KTM engineers integrated the pillion seat into the bodywork lines so that it looks like a real racing bike tail, but ensuring excellent comfort for the passenger.