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KTM 640 Duke II Limited Edition - 2006 Specifications and Reviews
The 2006 KTM 640 Duke II Limited Edition is a lightweight, single-cylinder enduro bike built for riders seeking accessible off-road performance and everyday versatility. Its punchy 625cc engine delivers responsive power through carburettor simplicity, while the nimble chassis excels on technical terrain and tight trails. Known for combining dirt bike capability with street-legal practicality, it remains a favorite among adventure and dual-sport enthusiasts.
2006
General information | |
| Category | Enduro / offroad |
| Year | 2006 |
| Model | KTM 640 Duke II Limited Edition |
Engine and Transmission Specifications | |
| Clutch | Wet multi-disc clutch, operated hydraulically |
| Transmission typefinal drive | Chain |
| Gearbox | 5-speed |
| Cooling system | Liquid |
| Lubrication system | Pressure lubrication with 2 Eaton pumps |
| Starter | Electric & kick |
| Ignition | Kokusan DC-CDI |
| Fuel control | OHC |
| Valves per cylinder | 4 |
| Fuel system | Carburettor. Mikuni BST 40 |
| Bore x stroke | 100.0 x 72.0 mm (3.9 x 2.8 inches) |
| Compression | 11.7:1 |
| Torque | 60.00 |
| Power | 53.64 |
| Stroke | 4 |
| Engine type | Single cylinder |
| Capacity: | 625.00 ccm (38.14 cubic inches) |
| | |
Physical measures and capacities | |
| Wheelbase | 1,460 mm (57.5 inches) |
| Ground clearance | 280 mm (11.0 inches) |
| Overall width | 640 mm (25.2 inches) |
| Seat height | 900 mm (35.4 inches) If adjustable, lowest setting. |
| Dry weight | 152.0 kg (335.1 pounds) |
KTM 640 Duke II Limited Edition dimensions and frame | |
| Exhaust system | Aluminum |
| Rear brakes diameter | 220 mm (8.7 inches) |
| Rear brakes | Single disc |
| Front brakes diameter | 320 mm (12.6 inches) |
| Front brakes | Single disc |
| Rear tyre dimensions | 160/70-17 |
| Front tyre dimensions | 120/70-17 |
| Rear suspension travel | 335 mm (13.2 inches) |
| Rear suspension | WP - Monoshock |
| Front suspension travel | 300 mm (11.8 inches) |
| Front suspension | WP-USD 43 mm (1.89 inches) |
| Trail | 109 mm (4.3 inches) |
| Rake (fork angle) | 26.5° |
| Frame type | Chromium-molybdenum, powder-coated |
| | |
Speed and acceleration | |
| Power/weight ratio | 0.3529 HP/kg |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Fuel capacity | 11.20 litres (2.96 gallons) |
Performance Profile & Rider Fit
53.6 hp
Peak Power
4.5s
0-60 mph
Best For
Track45%
City75%
Cornering85%
Daily Riding55%
Touring30%
Passenger25%
Rider Profile
| Best For | Best suited to intermediate or experienced riders comfortable with a light, torquey, and abrupt single-cylinder power delivery. |
| Purpose | A supermoto-styled machine designed for sharp, playful handling on tight roads and light off-road trails rather than outright speed or distance. |
| Rider Fit | The tall 900 mm seat height and firm, minimal seating demand decent leg length and some physical fitness for extended rides. |
| Character | Raw, punchy, and agile, this bike rewards an aggressive, engaged riding style with immediate throttle response and razor-sharp cornering. |
| Not Ideal For | Not ideal for riders seeking plush comfort, long-distance touring capability, or a smooth, vibration-free ride. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Rider Reviews
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