Engine Displacement: 398.63 cc
The 2026 model features the all-new LC4c engine, bumped up to 399 cc. This redesigned single-cylinder engine is more compact and lighter than its predecessor. It features a larger airbox and a new cylinder head design that optimizes torque delivery throughout the rev range.
Max Power: 46 PS @ 8,500 rpm
Pushing out 46 PS (approx. 45.3 BHP), the 390 Duke remains the king of the sub-400cc naked class. The new engine mapping provides a more linear power curve, making the bike feel even more "frantic" yet controlled than before.
Max Torque: 39 Nm @ 6,500 rpm
Torque has increased to 39 Nm, with a significant chunk of it available much lower in the rev range. This allows for lightning-fast exits from corners and effortless urban overtakes without the need for constant high-RPM hunting.
Top Speed: 167 km/h
Thanks to its improved power-to-weight ratio and refined aerodynamics, the 390 Duke can reach a top speed of 167 km/h. High-speed stability is enhanced by the new curved radiator and beefier fuel tank shrouds that act as aerodynamic wings.
Mileage: 30 kmpl
Despite the performance upgrades, the 390 Duke manages a respectable 30 kmpl. With its new 15-litre steel fuel tank, the range is now ample for long-distance touring across Nepal's diverse landscapes.
