KTM 640 LC4 Adventure

KTM 640 LC4 Adventure

The 2003 KTM 640 LC4 Adventure is a stylish and Adventure motorcycle with SOHC, Water cooled, 625cc and 54.38 HP (40 kW) @ 7000 rpm.

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Model year
2003
make icon
Make
KTM
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Engine Power
54.38 HP (40 kW) @ 7000 rpm
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Top Speed
96.31 mph

Technical Specifications

Engine and transmission

  • Engine type:
    1 cylinders, 4-stroke, Single
  • Displacement:
    625 cc (38.19 cubic inches)
  • Bore × stroke:
    3.98 inch × 3.07 inch (oversquare - shortstroke)
  • Cooling system:
    Water cooled
  • Power:
    54.38 HP (40 kW) @ 7000 rpm
  • Torque:
    55 Nm (40.57 lb-ft) @ 5500 rpm
  • Valve train:
    SOHC, variable
  • Valves per cylinder:
    4
  • Sparks per cylinder:
    1
  • Fuel supply system:
    Carburetor
  • Ignition type:
    Analogue CDI (Capacitive Discharge Ign.)
  • Funnel diameter:
    1.57 inch
  • Compression:
    11.5:1
  • Engine mounting:
    Transverse
  • Lubrication system:
    Wet sump
  • Gear box:
    Manual 5-speed
  • Clutch:
    Wet, multiple discs, cable operated
  • Final drive:
    Chain
  • Spark plug pipe type:
    NGK, DR8EA
  • Motor oil:
    Semi-Synthetic, 15W/40
  • Starter:
    Electric / Kick-starter

Dimensions

  • Wheel base:
    59.4 inch
  • Trail:
    4.9 inch
  • Ground clearance:
    12.4 inch
  • Seat height:
    37.2 inch
  • Curb weight:
    407.9 lbs
  • Dry weight:
    348.3 lbs

Chassis and suspension

  • Front
    Suspension:
    Cartridge - upside-down
    Suspension travel:
    10.63 inch
    Fork angle:
    28°
    Brake:
    Twin Disk, Ø11.81 inch
    Tire:
    90 / 90 R21 R
    Tire pressure:
    0.1 PSI
  • Rear
    Suspension:
    mono shock, Swingarm
    Suspension travel:
    12.6 inch
    Brake:
    Disk, Ø8.66 inch
    Tire:
    140 / 80 R18 R
    Tire pressure:
    0.1 PSI
  • Frame type:
    alloy, Single cradle frame

Other

  • ABS available:
    No
  • Power-to-weight ratio:
    0.22 KW/lbs (4.62 lbs/HP)
  • Top speed:
    96.31 mph
  • Fuel capacity:
    6.74 gals
  • Number of riders:
    2 persons
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