2005 KTM 640 LC4 Adventure
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.
OIL CIRCUIT
Experience from racing: a second oil injection nozzle now cools the pistons from below too, making the engine even more dependable.
IGNITION
A new ignition program map provides optimized combustion. A low octane program map can be activated for low-octane fuel (up to 80 octane).
VALVE TIMING
A new camshaft with quicker valve timing offers a more spontaneous progression of power and even better performance.
FORK FRONT
A new forks set-up with firmer springs reduces the forks’ plunge when the Brembo twin discs really grab.
GRAPHICS
There’s a new graphic design for all Adventure models in 2005. The KTM letters will be delineated with a silver shadow.
BRAKE REAR
In conjunction with new sintered brake pads, a new Brembo brake disc with round holes guarantees top braking performance and the highest Brembo standard.
INDICATORS
New indicators with a smaller orange glass and a longer operational life.
CHAIN
An X-ring endless chain (without a connecting link) eliminates the risk posed by the weakest link, i.e. the connecting link, which is always subject to the most wear.
ENGINE – Single cylinder, 4-stroke engine
DISPLACEMENT – 625 cc
BORE / STROKE – 101 / 78 mm
POWER OUTPUT – 40 kW / 7000 rpm
MAX. TORQUE – 55 Nm / 5500 rpm
COMPRESSION RATIO – 11.7:1
STARTER – Electric starter and kickstarter
TRANSMISSION – 5-speed, claw shifted
CARBURETOR – Mikuni constant pressure carburetor 40 mm
VALVE TIMING – 4 valves / OHC, roller rocker arm
ENGINE LUBRICATION – Forced oil lubrication with 2 Eaton pumps
ENGINE OIL – Motorex Power Synt 4T 10W-50
PRIMARY DRIVE – 31:79
SECONDARY DRIVE – X-Ring chain 5/8 x 1/4
COOLING SYSTEM – Liquid cooled
CLUTCH – Multi-disc wet clutch, hydraulically operated
IGNITION – Kokusan DC-CDI
FRAME – Double ground, chrome-moly-steel frame, powder-coated
SUBFRAME – chrome-moly-steel, powder-coated
HANDLEBAR – Magura aluminium, tapered
FRONT SUSPENSION – WP-USD 48 mm
REAR SUSPENSION – WP – Monoshock with Pro-Lever linkage
SUSPENSION TRAVEL, FRONT/REAR – 275 / 300 mm
FRONT BRAKE – 2 x Brembo 2-piston floating caliper, 2 x brake discs � 300mm
REAR BRAKE – Brembo single-piston, floating caliper, brake disc � 220 mm
RIMS, FRONT/REAR – 2.15 x 21 / 2.50 x 18
TYRES, FRONT/REAR – 90/90-21 ; 140/80-18
GEAR RATIO – 16:42
BATTERY – 12V 8.6 Ah
SILENCER – Stainless steel HGS 4
STEERING HEAD ANGLE – 62.5�
TRAIL – 124 mm
WHEEL BASE – 1510�10mm
GROUND CLEARANCE (UNLOADED) – 315 mm
SEAT HEIGHT – 945 mm
FUEL TANK CAPACITY – 25.5 litres/3.5 litre reserve
DRY WEIGHT – approx. 158 kg
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