KTM 660 SMC - 2004 Specifications and Reviews

The 2004 KTM 660 SMC is a lightweight supermotard designed for agile riders seeking playful urban performance and off-road capability. Its single-cylinder 654cc engine delivers accessible power with excellent torque characteristics, making it ideal for both street riding and adventure touring. Best known for its nimble handling and versatile nature, it appeals to riders valuing fun and practicality over raw horsepower.

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General information

CategorySuper motard
Year2004
ModelKTM 660 SMC

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox5-speed
Cooling systemLiquid
Fuel controlOHC
Fuel systemCarburettor
Bore x stroke102.0 x 80.0 mm (4.0 x 3.1 inches)
Compression11.7:1
Torque43.00
Power32.18
Stroke4
Engine typeSingle cylinder
Capacity:654.00 ccm (39.91 cubic inches)

Physical measures and capacities

Wheelbase1,510 mm (59.4 inches)
Ground clearance290 mm (11.4 inches)
Overall width660 mm (26.0 inches)
Overall height660 mm (26.0 inches)
Alternate seat height675 mm (26.6 inches) If adjustable, highest setting.
Seat height910 mm (35.8 inches) If adjustable, lowest setting.
Dry weight131.0 kg (288.8 pounds)
 
 

KTM 660 SMC dimensions and frame

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 suspensionWP - Monoshock
Front suspensionWP-USD 48 MA
Trail63 mm (2.5 inches)
Frame typeChromium-molybdenum, power-coated
 
 

Speed and acceleration

Power/weight ratio0.2456 HP/kg

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity9.00 litres (2.38 gallons)

Performance Profile & Rider Fit

28.2 hp
Peak Power
5.5s
0-60 mph

Best For

Track75%
City80%
Cornering92%
Daily Riding45%
Touring25%
Passenger20%

Rider Profile

Best ForBest suited to intermediate to experienced riders who can manage a light, punchy single with sharp, quick-reacting handling.
PurposeBuilt for supermoto-style thrills, tight cornering, and flickable street or track riding rather than long-distance travel.
Rider FitTall seat height and a slim, lightweight chassis favor riders with reasonable inseam length and a taste for an aggressive, upright riding position.
CharacterA raw, single-cylinder supermoto that rewards an energetic, playful riding style with immediate throttle response and razor-sharp steering.
Not Ideal ForNot a good match for riders wanting plush comfort, pillion-friendly ergonomics, or a relaxed high-mileage touring machine.

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

Rider Fit Visualizer

2004 KTM 660 SMC 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 2004 KTM 660 SMC, 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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