2004 KTM 640 LC4 Supermoto
 
Originally developed for racing, the 640
LC4 Supermoto now stands for quality in everyday
use.
Silencer and Silencer clamp New ground and
polished Niro surface.
Basic position of hand brake lever adjustable
as on Duke.
New 4 piston front calliper (? 2x30 mm,
2x34 mm).
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 - 11.7:1
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 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 - 265 / 300
mm
Front brake - Brembo 4-piston floating
caliper, 320 mm disc
Rear brake - Brembo 1-piston floating caliper,
220 mm disc
Rims, front/rear - 3.5 x 17" / 5.0 x 17"
Tires, front/rear - 120/70-17" ; 160/60-17"
Transmission ratio - 17:42
Chain - X-ring chain 5/8 x 1/4 "
Battery - 12V 8Ah
Main silencer - premium steel HGS 4
Steering head angle - 63°
Wheel caster - 99 mm
Wheelbase - 1510±10mm
Ground clearance (unloaded) - 290 mm
Seat height - 910 mm
Fuel capacity - approx. 12 liters / 2.5
liters reserve
Weight (no fuel) - approx. 149 kg
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