Supermotos
2003KTM 660 SMC
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The 2003 KTM 660 SMC is a lightweight super motard built for agile street and light off-road riding. Its punchy 654cc single-cylinder engine delivers accessible performance with strong low-end torque, making it ideal for novice to intermediate riders seeking affordable fun. Known for nimble handling and versatile capability, it excels at urban commuting and weekend adventures.
- Capacity
- 654.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 131.0 kg
- Seat height
- 910 mm
- Power
- 32.9 HP (24.2 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built for supermoto-style thrills, tight cornering, and flickable street or track riding rather than long-distance travel.
- Built for
- A raw, single-cylinder supermoto that rewards an energetic, playful riding style with immediate throttle response and razor-sharp steering.
- Not ideal for
- Not a good match for riders wanting plush comfort, pillion-friendly ergonomics, or a relaxed high-mileage touring machine.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Will it fit you?
Worked out in your browser - nothing is sent to usEngine
- Capacity
- 654.0 ccm
- Power
- 32.9 HP (24.2 kW)
- Torque
- 43.0 Nm (4.4 kgf-m) @ 4000 RPM
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.2511 HP/kg (dry)
- Bore x stroke
- 102.0 x 80.0 mm
- Compression
- 11.7:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Electric & kick
- Ignition
- Kokusan DC-CDI
- Valves per cylinder
- 4
- Lubrication system
- Pressure lubrication with 2 oil pumps
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Multi-disc wet clutch, hydraulically operated
Dimensions & weight
- Wheelbase
- 1510 mm
- Overall width
- 660 mm
- Seat height
- 910 mm
- Dry weight
- 131.0 kg
- Fuel capacity
- 9.00 litres
- Ground clearance
- 290 mm
- Reserve fuel capacity
- 2.50 litres
Chassis & suspension
- Frame
- Chromium-molybdenum, power-coated
- Front suspension
- WP-USD 48 MA
- Rear suspension
- WP - Monoshock
- Front wheel travel
- 265 mm
- Rear wheel travel
- 310 mm
- Rake (fork angle)
- 27.0°
- Trail
- 63 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 320 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 220 mm
- Front tyre
- 120/70-17
- Rear tyre
- 160/60-17
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
What changed, year to year
Differences highlighted| Specification | 2003 | 2004 | 2005 | 2006 | 2007 |
|---|---|---|---|---|---|
| Capacity | 654 cc | 654 cc | 654 cc | 654 cc | 654 cc |
| Dry weight | 131 kg | 131 kg | 131 kg | 138 kg | 138 kg |
| Seat height | 910 mm | 910 mm | 910 mm | 910 mm | 910 mm |
| Fuel capacity | 9 L | 9 L | 9 L | 9.2 L | 9.2 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the KTM 660 SMC?
The 2003 KTM 660 SMC has a Capacity of 654.0 ccm (39.91 cubic inches).
What engine power does the KTM 660 SMC have?
The 2003 KTM 660 SMC has a Power of 32.9 HP (24.2 kW).
How many gears does the KTM 660 SMC have?
The 2003 KTM 660 SMC has a Gearbox of 5-speed.
What is the torque of the KTM 660 SMC?
The 2003 KTM 660 SMC has a Torque of 43.0 Nm (4.4 kgf-m or 31.7 ft.lbs) @ 4000 RPM.
How much does the KTM 660 SMC weigh?
The 2003 KTM 660 SMC has a Dry weight of 131.0 kg (288.8 pounds).
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