
KTM 640 Adventure
Key specifications
Overview
Introducing the 2006 KTM 640 Adventure, an iconic enduro-offroad motorcycle that perfectly blends rugged durability with spirited performance. Designed for those who crave adventure, this bike stands out in the dual-sport market, offering an agile and capable ride both on and off the beaten path. With its striking orange and black aesthetics, the 640 Adventure is not just a bike; it’s a declaration of intent for serious off-road enthusiasts and adventurers alike. At the heart of the KTM 640 Adventure lies a powerful 625cc single-cylinder, four-stroke engine, producing an exhilarating 53.64 horsepower at 7,000 RPM and a robust torque of 55 Nm at 5,500 RPM. The meticulously engineered powertrain, featuring a Mikuni BST 40 carburettor and a 5-speed gearbox, delivers seamless acceleration and responsiveness, making it a thrill to ride on both gravel roads and technical trails. With a compression ratio of 11.7:1, the 640 Adventure exhibits impressive power delivery and reliability, ensuring that it can handle the rigors of long-distance exploration. The combination of a lightweight frame and a power-to-weight ratio of 0.3395 HP/kg guarantees that this bike feels nimble and lively, even in the most challenging conditions. The KTM 640 Adventure is equipped with cutting-edge features that enhance its capability and rider experience. Its robust chromium-molybdenum frame and advanced WP suspension system provide exceptional stability and control, whether navigating rocky terrains or cruising down highways. The bike's dual-disc front brakes (11.8 inches) and a single rear disc (8.7 inches) ensure powerful stopping performance, giving riders the confidence to tackle steep descents and sudden obstacles. Additionally, the adjustable seat height of 945 mm offers versatility for different rider profiles, while the generous 25.5-litre fuel tank ensures that the adventure doesn't have to stop early due to fuel limitations. **
Pros
- Versatile Performance: The powerful engine and lightweight design make it suitable for both off-road adventures and on-road commuting.
- Excellent Suspension: The WP suspension provides outstanding handling and comfort, absorbing bumps and rough terrain with ease.
- Rugged Aesthetics: The KTM's striking design and durable construction cater to riders who prioritize style and toughness.
Cons
- Seat Height: The relatively tall seat height may be a challenge for shorter riders, potentially affecting comfort and control.
- Limited Availability: The 640 Adventure is not available in the USA, which may limit access for interested riders.
- Carburettor System: While the carburettor setup is reliable, it may not offer the fuel efficiency or ease of tuning found in modern fuel-injected systems.
Technical details
Source specification data
- Make
- KTM
- Model
- 640 Adventure
- Category
- Enduro-offroad
- Starter
- Electric & kick
- Comments
- Not available in the USA.
- Power
- 53.64 HP (39.2 kW)) @ 7000 RPM
- Clutch
- Wet multi-disc clutch, operated hydraulically
- Torque
- 55.00 Nm (5.6 kgf-m or 40.6 ft.lbs) @ 5500 RPM
- Gearbox
- 5-speed
- Ignition
- Kokusan DC-CDI
- Fuel System
- Carburettor. Mikuni BST 40
- Bore X Stroke
- 101.0 x 78.0 mm (4.0 x 3.1 inches)
- Compression
- 11.7:1
- Displacement
- 625.00 ccm (38.14 cubic inches)
- Cooling System
- Liquid
- Engine Details
- Single cylinder, four-stroke
- Exhaust System
- Premium steel HGS 4
- Lubrication System
- Pressure lubrication with 2 Eaton pumps
- Valves Per Cylinder
- 4
- Transmission Type Final Drive
- Chain
- Dry Weight
- 158.0 kg (348.3 pounds)
- Seat Height
- 945 mm (37.2 inches) If adjustable, lowest setting.
- Fuel Capacity
- 25.50 litres (6.74 gallons)
- Overall Width
- 640 mm (25.2 inches)
- Ground Clearance
- 315 mm (12.4 inches)
- Power Weight Ratio
- 0.3395 HP/kg
- Rake
- 27.5°
- Trail
- 124 mm (4.9 inches)
- Rear Tyre
- 140/80-18
- Frame Type
- Chromium-molybdenum, powder-coated
- Front Tyre
- 90/90-21
- Rear Brakes
- Single disc
- Front Brakes
- Double disc
- Rear Suspension
- WP - Monoshock
- Front Suspension
- WP-USD 48 mm
- Rear Wheel Travel
- 335 mm (13.2 inches)
- Front Wheel Travel
- 300 mm (11.8 inches)
- Rear Brakes Diameter
- 220 mm (8.7 inches)
- Front Brakes Diameter
- 300 mm (11.8 inches)