2004 KTM 640 LC4 Adventure
Adventure everywhere: on Alpine roads, gravel
runs, or sand dunes, at the weekend, or on
long trips. The series version of Richard
Sainct's current Dakar Rally-winning bike.
30 litre tank, frameattached fairing, trip
master cockpit. Characterised by the low Rally
fender in front and the new front double disk
brake.
Handlebars 15 mm higher.
New ground of the silencer and the silencer
clamp polished Niro surface.
Filter-cap lockable with ignition key as
on LC4 Enduro.
New 48-mm-USD-fork
26 mm front wheel spindle.
Engine - single-cylinder 4-stroke engine
Displacement (cc) - 625
Bore / stroke (mm) - 101 / 78
Performance (homologated) - 40 kW / 7000
rpm
Max. torque - 55 Nm / 5500 rpm
Compression ratio - 11.5:1
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 10W-50
Primary drive - 31:79
Cooling - liquid-cooled
Clutch - wet multi-disc clutch, operated
hydraulically
Ignition - Kokusan DC-CDI 4K5
Frame - chromium-molybdenum, power-coated
Subframe - chromium-molybdenum, power-coated
Handlebar - aluminum, conified
Front suspension - WP-USD 48 MA
Rear suspension - WP - Monoshock
Suspension travel, front/rear - 270 / 320
mm
Front brake - double disc, 300 mm
Rear brake - Brembo 1-piston floating caliper,
220 mm disc
Rims, front/rear - 1.60 x 21" / 2.50 x
18" DID
Tyres, front/rear - 90/90-21" ; 140/80-18"
Transmission ratio - 16:42
Chain - X-ring chain 5/8 x 1/4 "
Battery - 12V 8Ah
Main silencer - premium steel HGS 4
Steering head angle - 62.5°
Wheel caster - 124 mm
Wheelbase - 1510±10mm
Ground clearance (unloaded) - 315 mm
Seat height - 945 mm
Fuel capacity - approx. 28 liters / 3.5
liters reserve
Weight (no fuel) - approx. 158 kg
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