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2004 KTM 640 Duke II

KTM 640 Duke IIKTM 640 Duke II

  • New side stand has new forged bracket, new retracting spring.
  • Secondary transmission 17:42.
  • New colours.
  • Engine - single-cylinder 4-stroke engine
  • Displacement (cc) - 625
  • Bore / stroke (mm) - 101 / 78
  • Performance (homologated) - 40 kW / 7000 rpm
  • Max. torque - 60 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 43 MA
  • Rear suspension - WP - Monoshock
  • Suspension travel, front/rear - 140 / 170 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" / 4.5 x 17"
  • Tyres, front/rear - 120/70-17" ; 160/70-17"
  • Transmission ratio - 17:42
  • Chain - X-ring chain 5/8 x 1/4 "
  • Battery - 12V 8Ah
  • Main silencer - 2 x aluminum
  • Steering head angle - 63.5
  • Wheel caster - 109 mm
  • Wheelbase - 146010mm
  • Ground clearance (unloaded) - 270 mm
  • Seat height - 900 mm
  • Fuel capacity - approx. 12 liters / 2.5 liters reserve
  • Weight (no fuel) - approx. 149 kg