KTM 640 LC4 SMC Orange - 2005 Specifications and Reviews

The 2005 KTM 640 LC4 SMC Orange is a lightweight supermoto designed for riders seeking nimble street performance and playful handling. Its potent single-cylinder engine delivers strong mid-range torque ideal for urban riding and spirited canyon carving. Known for exceptional maneuverability and affordable thrills, this Austrian machine suits enthusiasts who value character and agility over raw power.

2005
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General information

CategorySuper motard
Year2005
ModelKTM 640 LC4 SMC Orange

Engine and Transmission Specifications

ClutchWet multi-disc clutch, operated hydraulically
Transmission type,final driveChain
Gearbox5-speed
Cooling systemLiquid
Lubrication systemPressure lubrication with 2 Eaton pumps
IgnitionKokusan DC-CDI
Fuel controlOHC
Fuel systemCarburettor. Mikuni BST 40
Valves per cylinder4
Bore x stroke101.0 x 78.0 mm (4.0 x 3.1 inches)
Compression11.7:1
Torque60.00 Nm (6.1 kgf-m or 44.3 ft.lbs) @ 5750
Power53.64
Engine typeSingle cylinder, four-stroke
Capacity:625.00 ccm (38.14 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter320 mm (12.6 inches)
Front brakesSingle disc
Front tyre dimensions120/70-17
Rear suspension travel335 mm (13.2 inches)
Rear suspensionWP - Monoshock
Front suspensionWP-USD 48 mm (1.89´
Trail99 mm (3.9 inches)
Rake (fork angle)27.0°
Frame typeChromium-molybdenum, power-coated
 
 

Physical measures and capacities

Fuel capacity11.20 litres (2.96 gallons)
Wheelbase1,510 mm (59.4 inches)
Ground clearance280 mm (11.0 inches)
Overall width640 mm (25.2 inches)
Overall height640 mm (25.2 inches)
Seat height910 mm (35.8 inches) If adjustable, lowest setting.
Power/weight ratio0.3600 HP/kg
Dry weight149.0 kg (328.5 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
StarterElectric & kick

Performance Profile & Rider Fit

53.6 hp
Peak Power
4.5s
0-60 mph

Best For

Track80%
City65%
Cornering95%
Daily Riding45%
Touring20%
Passenger15%

Rider Profile

Best ForThis bike suits experienced riders comfortable with a light, tall, single-cylinder machine that demands active input and rewards precision.
PurposeIt's built as a supermoto for carving corners and attacking twisty tarmac or tight track days, prioritizing agility over outright top speed.
Rider FitThe tall 910mm seat height and firm, minimal seating position favor taller, physically fit riders who don't mind a stripped-down, aggressive stance.
CharacterRaw, punchy, and mechanical, the big single delivers strong low-to-mid torque with a characterful thump that rewards throttle finesse over sheer horsepower.
Not Ideal ForThis isn't the right choice for riders wanting long-distance comfort, pillion capability, or a smooth, vibration-free ride.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2005 KTM 640 LC4 SMC Orange Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 910mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2005 KTM 640 LC4 SMC Orange, with a relaxed knee angle of around 150 degrees and a forward-leaning riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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