Motocross Bikes
1999KTM 380 SX
23 fields on record
The 1999 KTM 380 SX is a two-stroke motocross bike for experienced riders who want big-bore power. Its liquid-cooled 380cc single drives through a chain in a chassis built for racing. With a tall 925 mm seat, a dry weight of about 104 kg and a 2.4-litre tank, it is intended for the track rather than the road.
- Capacity
- 380.0 ccm
- Engine
- Single
- Gearbox
- Not on record
Know it? Add it → - Dry weight
- 103.7 kg
- Seat height
- 925 mm
- Power
- 38.0 HP (27.9 kW)
What’s new for the 1999 KTM 380 SX
vs the 1998| Spec | 1998 | 1999 |
|---|---|---|
| Wheelbase | — | 1481 mm (58.3 inches) |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross racing and aggressive off-road riding on tracks and rough terrain, not for street use.
- Built for
- A raw, high-strung two-stroke thumper that rewards aggressive throttle control and rewards commitment through corners and jumps.
- Not ideal for
- Not suitable for commuting, touring, carrying passengers, or riders seeking a comfortable, low-maintenance street bike.
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
- 380.0 ccm
- Power
- 38.0 HP (27.9 kW)
- Engine type
- Single
- Power/weight ratio
- 0.3664 HP/kg (dry)
- Bore x stroke
- 78.0 x 77.0 mm
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- Kokusan 2K-2
Transmission
- Final drive
- Chain
- Clutch
- Multiple disc clutch in oil bath
Dimensions & weight
- Wheelbase
- 1481 mm
- Seat height
- 925 mm
- Dry weight
- 103.7 kg
- Fuel capacity
- 2.40 litres
- Ground clearance
- 380 mm
Chassis & suspension
- Frame
- CrMo steel
- Front suspension
- White Power Extreme 50mm.
- Rear suspension
- WP - Monoshock
- Front wheel travel
- 300 mm
Brakes & wheels
- Front brakes
- Single disc. 2-piston calipers
Other
- Color options
- Multicolored
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 | 1998 | 1999 | 2000 |
|---|---|---|---|
| Capacity | 380 cc | 380 cc | 368 cc |
| Dry weight | 104 kg | 104 kg | 101 kg |
| Seat height | 925 mm | 925 mm | 925 mm |
| Fuel capacity | 2.4 L | 2.4 L | 7.5 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 380 SX?
The 1999 KTM 380 SX has a Capacity of 380.0 ccm (23.19 cubic inches).
What engine power does the KTM 380 SX have?
The 1999 KTM 380 SX has a Power of 38.0 HP (27.9 kW).
How much does the KTM 380 SX weigh?
The 1999 KTM 380 SX has a Dry weight of 103.7 kg (228.6 pounds).
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