The 990 Duke freshens up the formula with longer valve openings and more aggressive camshaft profiles. KTM also increases both bore (92.5 mm) and stroke (70.4 mm) to achieve the 947 cc capacity. That helps drive up both horsepower and torque to 123 ponies (at 9,500 rpm) and 76 foot-pounds (at 6,750 rpm). According to the manufacturer, increased Yes, it lacks the top end thrills of the 690 single, and has a slightly mono-tone engine delivery and exhaust note, but it’s a damn sight easier to live with. And it isn’t slow, the ER will cruise at over 80mph where the KTM is starting to run out of puff. Although neither is destined to do that much mile-munching. The KTM 390 DUKE's lightweight and precision-crafted exhaust system comprises a side exhaust, link pipe and silencer. The three-chamber silencer has been positioned close to the bike's overall center of gravity, improving balance and handling, whilst also delivering smooth, instant and beast-like power. The Duke 390’s front forks and the rear shock are built by WP, who makes all of KTM’s suspension goodies. This is probably due to the fact that KTM bought them up a few years back. Of course Today’s KTM 690 DUKE Naked Bike stays loyal to its ancestor’s ways but adds future-proof refinements: sophisticated electronics, awesome smoothness, tons of grunt and improved ergonomics. This strongly cements the world’s strongest single-cylinder production motorcycle at the cutting edge of engineering. Long live the Duke! 2024 KTM 690 ENDURO R 2024 KTM 990 DUKE 2024 KTM 790 DUKE KTM ACADEMY OF SPEED; Service. Safety; Manuals; Maintenance; Before the Duke, KTM was known as a specialist offroad motorcycle manufacturer, and the Duke began life as a Supermoto. giving riders a top speed of 150mph. The KTM 690 is the most powerful The KTM 690 Duke was a single cylinder, four-stroke Road motorcycle produced by KTM between 2008 and 2019. Max torque was 54.58 ft/lbs (74.0 Nm) @ 5500 RPM. Claimed horsepower was 71.48 HP (53.3 KW) @ 7500 RPM. Engine [edit | edit source] The engine was a liquid cooled single cylinder, four-stroke. The Duke 990 rolls with 123 hp and 76 lb-ft of torque, according to KTM. The chassis is equally revised. Still constructed using KTM’s trademark tubular steel with a cast aluminum subframe with the airbox and intake integrated, the main frame now extends down the outside of the swingarm pivot bolt rather than old Dukes that ran it inside. Thanks for sharing bro, I am tempting to get one 690 Duke R too, I like the light weight with strong power. I am not top speed kind of rider, but enjoying the low-mid torque. Never own any KTM bikes before, just a bit worry about the reliability and maintenance. But heard from fellow bikers said KTM built great bike, maybe I worry too much 🤭 33ja.