Definition
The KTM 990 Super Duke is a middle‑weight, sport‑oriented naked motorcycle produced by the Austrian manufacturer KTM between 2005 and 2013. It is part of KTM’s “Duke” series and is distinguished by a 999 cc liquid‑cooled V‑twin engine, trellis frame, and performance‑focused chassis.
Overview
Introduced for the 2005 model year, the 990 Super Duke succeeded the earlier 950 Super Duke and marked KTM’s entry into the high‑performance naked‑bike market. The model was marketed primarily in Europe and North America and was later updated as the “Super Duke R” (2009–2013) with increased power output and revised electronics. Production ceased in 2013, and the motorcycle was effectively replaced by the larger‑displacement KTM 1190 Super Duke.
Etymology / Origin
- KTM: An abbreviation of Kraftfahrzeug Trunkenpolz Mattighofen, the original name of the company founded in 1934 in Mattighofen, Austria.
- Super: In KTM’s nomenclature, “Super” designates a model with a larger displacement relative to the standard “Duke” line.
- Duke: The “Duke” series refers to KTM’s range of lightweight to middle‑weight street‑oriented motorcycles, characterized by high power‑to‑weight ratios and aggressive ergonomics.
Characteristics
| Feature | Details |
|---|---|
| Engine | 999 cc 90° V‑twin, liquid‑cooled, DOHC, four valves per cylinder; fuel‑injected. |
| Power Output | 119 hp (87 kW) at 9,500 rpm (standard 990); 129 hp (95 kW) at 9,500 rpm (Super Duke R). |
| Torque | 98 Nm (72 lb‑ft) at 7,500 rpm (standard); 106 Nm (78 lb‑ft) at 7,500 rpm (R version). |
| Transmission | 6‑speed gearbox with a slipper clutch (R version). |
| Frame | Steel tubular trellis frame offering high rigidity and relatively low weight (≈176 kg wet). |
| Suspension | Front: upside‑down WP USD fork, 45 mm travel. Rear: WP monoshock with adjustable preload and rebound. |
| Brakes | Front: dual 300 mm floating discs with 4‑piston calipers (later upgraded to 320 mm on the R). Rear: single 240 mm disc with single‑piston caliper. |
| Electronics | Analog dash with optional digital instrumentation; the R version introduced selectable riding modes and ABS (later optional). |
| Dimensions | Wheelbase 1,460 mm; seat height 820 mm; fuel capacity 16 L. |
| Performance | Top speed approximately 250 km/h (155 mph); 0‑100 km/h (0‑62 mph) in about 3.6 seconds (R version). |
| Production Numbers | Exact global production figures are not publicly disclosed; however, the model was produced continuously for eight model years. |
Related Topics
- KTM 950 Super Duke – Predecessor model with a 942 cc V‑twin engine (1998–2001).
- KTM 1190 Super Duke – Successor introduced in 2014, featuring a 1195 cc V‑twin.
- KTM Duke Series – Includes the 125 Duke, 200 Duke, 390 Duke, 690 Duke, and other variants targeting different displacement classes.
- Naked Motorcycle – A motorcycle style characterized by minimal fairings, exposing the engine and mechanical components; the 990 Super Duke is a prominent example.
- Treasure Frame – KTM’s signature steel trellis frame design, also used on many of its sport and off‑road motorcycles.
All specifications are based on manufacturer data and contemporary road‑test publications.