KTM 990 Super Duke 2005-2013 Service Manual

The Super Duke name traces its roots to KTM's genuine off-road heritage, and the 990 version — released in 2005 with updates in 2007 and 2012 — represented the Austrian company's boldest statement yet that it could build a genuinely competitive naked streetfighter, not just dirt and adventure machines. An "R" variant arrived for 2008, available through 2011, layering premium components onto the standard bike's already aggressive foundation.

Power comes from the LC8, a 999cc liquid-cooled 75-degree V-twin, DOHC with 4 valves per cylinder and an 11.5:1 compression ratio via a 101mm x 62.4mm bore and stroke — the same fundamental architecture shared across KTM's 990-badged lineup, including the Adventure and SM-T, tuned here specifically for naked-bike aggression rather than touring comfort or off-road capability. Power runs through a 6-speed gearbox with a wet clutch and X-ring chain final drive, delivering the kind of punchy, characterful V-twin delivery that's defined KTM's big twins throughout this era.

The chassis uses a steel tube trellis frame — genuinely lightweight and rigid, a KTM signature — paired with a 48mm adjustable upside-down WP fork and an adjustable WP rear shock, delivering real cornering confidence to match the engine's aggressive character. Braking comes from dual 320mm front discs with 4-piston calipers and a single 240mm rear disc with a 1-piston caliper, riding on a 120/70 ZR17 front and 180/55 ZR17 rear tire — proper sport-naked rubber sizing rather than the taller, off-road-biased tires found on the Adventure sibling. A 1,438mm wheelbase kept the bike genuinely flickable through corners while still delivering the stability needed for aggressive acceleration out of them. The 990 Super Duke ran through 2013 before KTM replaced it with the significantly more powerful 1290 Super Duke R, which inherited the "Beast" nickname and pushed the platform's performance ambitions considerably further.

This factory service manual covers the procedures, torque specs, and diagrams needed to keep a 2005-2013 990 Super Duke running the way it was built to.