Motocross Bikes
2005KTM 450 SX Racing
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The 2005 KTM 450 SX Racing is a high-performance motocross machine designed for competitive riders seeking reliability and aggressive power delivery. Its liquid-cooled 449cc single-cylinder engine delivers strong mid-range torque ideal for varied track conditions. Known for its lightweight construction and responsive handling, this bike excels in competitive cross and motocross racing environments.
- Capacity
- 449.4 ccm
- Engine
- Single
- Gearbox
- 4-speed
- Dry weight
- 105.2 kg
- Seat height
- 925 mm
- Power
- 44.9 HP (33.0 kW)
What’s new for the 2005 KTM 450 SX Racing
vs the 2004| Spec | 2004 | 2005 |
|---|---|---|
| Front suspension | WP-USD 48/26 MA/PA | WP-USD 48 mm (1.89 inch) |
| Rear suspension | WP-PDS-DA shock absorber | WP-PDS shock absorber |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for motocross competition and aggressive off-road riding, not for street use or commuting.
- Built for
- Light, razor-sharp, and explosive, this bike rewards aggressive inputs with incredible agility and jump-to-jump responsiveness on the track.
- Not ideal for
- This is not suited for daily commuting, long-distance touring, 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
- 449.4 ccm
- Power
- 44.9 HP (33.0 kW)
- Engine type
- Single
- Power/weight ratio
- 0.4268 HP/kg (dry)
- Bore x stroke
- 95.0 x 63.4 mm
- Compression
- 12.0:1
- Cooling system
- Liquid
- Fuel system
- Carburettor
- Starting
- Kick
- Ignition
- Kokusan digital 4K-3A
- Lubrication system
- Pressure lubrication with 2 Eaton pumps
Transmission
- Gearbox
- 4-speed
- Transmission type
- Manual
- Final drive
- Chain
- Clutch
- Wet multi-disc clutch, operated hydraulically
Dimensions & weight
- Wheelbase
- 1481 mm
- Overall width
- 450 mm
- Seat height
- 925 mm
- Dry weight
- 105.2 kg
- Fuel capacity
- 7.00 litres
- Ground clearance
- 385 mm
Chassis & suspension
- Frame
- Chromium molybdenum
- Front suspension
- WP-USD 48 mm (1.89 inch)
- Rear suspension
- WP-PDS shock absorber
- Front wheel travel
- 300 mm
- Rear wheel travel
- 335 mm
- Rake (fork angle)
- 26.5°
- Trail
- 112 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 216 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 260 mm
- Front tyre
- 80/100-21
- Rear tyre
- 110/90-19
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 |
|---|---|---|---|
| Capacity | 449 cc | 449 cc | 449 cc |
| Dry weight | 104 kg | 105 kg | 105 kg |
| Seat height | 925 mm | 925 mm | 925 mm |
| Fuel capacity | 7 L | 7 L | 7 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 450 SX Racing?
The 2005 KTM 450 SX Racing has a Capacity of 449.4 ccm (27.42 cubic inches).
What engine power does the KTM 450 SX Racing have?
The 2005 KTM 450 SX Racing has a Power of 44.9 HP (33.0 kW).
How many gears does the KTM 450 SX Racing have?
The 2005 KTM 450 SX Racing has a Gearbox of 4-speed.
How much does the KTM 450 SX Racing weigh?
The 2005 KTM 450 SX Racing has a Dry weight of 105.2 kg (231.9 pounds).
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