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.
Experience from racing: a second oil injection nozzle now cools the pistons from below too, making the engine even more dependable.
A new ignition program map provides optimized combustion. A "low octane" program map can be activated for low-octane fuel (up to 80 octane).
A new camshaft with quicker valve timing offers a more spontaneous progression of power and even better performance.
A new forks set-up with firmer springs reduces the forks' plunge when the Brembo twin discs really grab.
There's a new graphic design for all Adventure models in 2005. The KTM letters will be delineated with a silver shadow.
In conjunction with new sintered brake pads, a new Brembo brake disc with round holes guarantees top braking performance and the highest Brembo standard.
New indicators with a smaller orange glass and a longer operational life.
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 Ø 300mm
REAR BRAKE - Brembo single-piston, floating caliper, brake disc Ø 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