The KTM 640 Duke II is a street-legal supermotard bike that embodies the perfect blend of agility, power, and style. Its four-stroke, single-cylinder engine, with SOHC and 4 valves, delivers a thrilling ride experience, with an exhilarating howl of rubber against pavement that echoes off the surrounding buildings. This machine is designed for the thrill-seeker, with a tail-hung well out in a controlled brake slide, scribing a dark arc deep into the apex.
As you ride the Duke II, you’ll be struck by its confidence-inspiring handling and its uncanny ability to carve through twisties with ease. With its electric starter, 16cc added displacement, and Italian-made BBS cast-alloy wheels, this bike is a masterclass in street refinement and performance. Viewed from the front, the vertically stacked projector-beam headlight array commands attention, giving the Duke II a more compact and aggressive appearance that’s sure to turn heads.
Whether you’re tackling a twisty mountain road or simply carving through a vacant shopping-center parking lot, the KTM 640 Duke II is the perfect accomplice for any ride. With its reputation for pavement play and its ability to gun down bikes twice its size, this bike is not for the faint of heart. So, buckle up and hold on tight – the KTM 640 Duke II is ready to unleash its full fury on the road, and it’s guaranteed to leave you breathless.
Key Specifications
Engine Type
Four stroke, single Cylinder. SOHC, 4 valves, engine balancer
Engine Capacity
624.6 cc / 38.1 cu in
Max Power
40.1 kw / 55 hp
Max Torque
60 Nm / 6.1 kgf-m / 44.3 lb-ft @ 5500 rpm
Fuel Tank Capacity
11.3 L/ 3.0 US gal / 2.4 Imp gal
Seat Height
33.9 inches / 860 mm
*n/a – information not provided by manufacturer
All Specifications
Make & Model
Model
KTM 640 Duke II
Year
1998 – 2000
Engine
Engine Type
Four stroke, single Cylinder. SOHC, 4 valves, engine balancer
*We strive to provide the most comprehensive and accurate specifications possible. However, certain details may not be available if the manufacturer did not disclose them or if the information is no longer publicly accessible. If you find any discrepancy with any data on this site, please feel free to let us know at contact@throttlecraze.com
