22 June. Monday 2026
KTM 690 Duke - 2011 Specifications and Reviews
The 2011 KTM 690 Duke is a lightweight naked bike powered by a potent single-cylinder engine delivering 64 horsepower and strong mid-range torque. Its aggressive styling, sharp handling, and accessible performance make it ideal for riders seeking an affordable, fun middleweight that excels in urban environments and back roads. Known for its minimalist design and European engineering, the Duke offers excellent value and character for experienced beginners to intermediate riders.
General information | |
| Category | Naked bike |
| Year | 2011 |
| Model | KTM 690 Duke |
| | |
Engine and Transmission Specifications | |
| Exhaust system | Stainless steel underfloor silencer with integrated catalytic converter |
| Driveline | 16:40. Primary drive: 36:79. |
| Clutch | APTC slipper clutch, hydraulically operated |
| Gearbox | 6-speed |
| Cooling system | Liquid |
| Lubrication system | Pressure lubrication with 2 Eaton pumps |
| Fuel control | OHC |
| Bore x stroke | 102.0 x 80.0 mm (4.0 x 3.1 inches) |
| Compression | 11.8:1 |
| Torque | 67.00 Nm (6.8 kgf-m or 49.4 ft.lbs) @ 5500 |
| Power | 64.37 |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 654.00 ccm (39.91 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Wheels | Cast aluminium wheels 3.5 x 17in., 5 x 17in. |
| Rear brakes diameter | 240 mm (9.4 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 320 mm (12.6 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 160/60-R17 |
| Front tyre dimensions | 120/70-17 |
| Rear suspension travel | 140 mm (5.5 inches) |
| Rear suspension | WP mono shock with Pro-Lever linkage |
| Front suspension travel | 140 mm (5.5 inches) |
| Front suspension | WP USD 48 mm (1.89 in) |
| Trail | 115 mm (4.5 inches) |
| Rake (fork angle) | 26.5° |
| Frame type | Chromium-Molybdenum trellis frame, powder coated. Subframe: Aluminium 7020. |
Physical measures and capacities | |
| Fuel capacity | 13.50 litres (3.57 gallons) |
| Wheelbase | 1,472 mm (58.0 inches) |
| Ground clearance | 155 mm (6.1 inches) |
| Seat height | 865 mm (34.1 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.4335 HP/kg |
| Dry weight | 148.5 kg (327.4 pounds) |
| | |
Other specs | |
| Color options | Orange/black |
| Wheelbase | 1,280 mm (50.4 inches) |
| Rear tyre | 20/11-9 |
| Front tyre | 21/7-10 |
| Rear wheel travel | 272 mm (10.7 inches) |
| Rear Suspension | WP PDS mono-shock, fully adjustable, swingarm |
| Front wheel travel | 275 mm (10.8 inches) |
| Front Suspension | WP fully adjustable, twin A-arms |
| Fuel system | Carburettor. Keihin FCR MX 39 |
| Valves per cylinder | 4 |
| Bore x Stroke | 95.0 x 72.0 mm (3.7 x 2.8 inches) |
| Compression | 11.0:1 |
| Capacity: | 510.40 ccm (31.14 cubic inches) |
| Model | KTM 525 XC |
| Starter | Electric |
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