Duke 390 top speed: KTM 390 Duke 0-60

KTM 390 Duke 0-60 mph in 4.19 seconds. 0-100 km/h in 4.34 seconds. The KTM 390 Duke 's Quater mile is 13.30 seconds @ 96.3 mph and the top speed is 106.3 mph. The 2025 Duke 390 roars to life with a 399 cc LC4c single-cylinder engine delivering 44 HP and 28.8 lb-ft torque, rockets to 104 mph GPS-verified top speed, and carries a $5,899 base MSRP in the US. Dubbed the Corner Rocket by KTM, the 390 Duke is a 399cc single-cylinder bike that produces 44 horsepower and 27 lb-ft of torque, with a top speed hovering around 105 mph .