Adventure - 640 Adventure
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Wherever in the world strange continents, lonely desert expanses or wild jungle trails are explored - the KTM 640 Adventure is the ultimate, single-cylinder travel motorcycle. Directly descended from successful rally racing bikes, it is characterized by its low weight, agile chassis with long suspension travel and a robust LC4 engine.
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| Chassis |
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| Frame |
chromium-molybdenum, powder-coated |
| Subframe |
chromium-molybdenum, powder-coated |
| Handlebar |
Magura aluminum, conified |
| Front suspension |
WP-USD 48 mm |
| Rear suspension |
WP - Monoshock |
| Suspension travel front/rear |
275 / 300 mm (10.83 x 11.81") |
| Front brake |
double disc, 300 mm (11.81") |
| Rear brake |
Brembo 1-piston floating caliper, 220 mm disc (8.66") |
| Rims, front/rear |
2.15 x 21" / 2.50 x 18" |
| Tires, front/rear |
90/90-21" ; 140/80-18" |
| Transmission ratio |
16:42 |
| Battery |
12 V / 8.6 Ah |
| Main silencer |
premium steel HGS 4 |
| Steering head angle |
62.5° |
| Wheel caster |
124 mm (4.88") |
| Wheelbase |
1510±10mm (59.45±0.39") |
| Ground clearance (unloaded) |
315 mm (12.4") |
| Seat height |
945 mm (37.2") |
| Fuel capacity |
approx. 25.5 liters (6.74 gal) |
| Weight (no fuel) |
approx. 158 kg (348.3 lbs) |
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| Engine |
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| Engine |
single-cylinder 4-stroke engine |
| Displacement (cc) |
625 |
| Bore / stroke (mm) |
101 / 78 (3.98 x 3.07") |
| Performance (homologated) |
40 kW / 7000 rpm |
| Max. torque |
55 Nm / 5500 rpm |
| Compression ratio |
11.7:1 |
| Starter |
E-starter and kickstarter |
| Transmission |
5 gears, dog-clutch engagement |
| Carburetor |
Mikuni BST 40 |
| Control |
4 valves / OHC, roller rocker lever |
| Lubrication |
Pressure lubrication with 2 Eaton pumps |
| Engine oil |
Motorex Power Synt 4T 10W50 |
| Primary drive |
31:79 |
| Final drive |
X-Ring chain 5/8 x 1/4" |
| Cooling |
liquid-cooled |
| Clutch |
wet multi-disc clutch, operated hydraulically |
| Ignition |
Kokusan DC-CDI |
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