KTM has achieved an even higher level of power and ridability from its 690cc four-stroke single that powers the newly revamped Duke 690. KTM’s Ride Mode technology along with updates to more than 50 percent of the LC4 motor’s mechanical components has resulted in spirited delivery any sport-minded rider will appreciate. The engine’s new shorter-stroke, larger-bore configuration has increased the rev ceiling 1,000 rpm, offering ample over-rev to keep the thrills a coming.