2005
KTM 450 SX Racing - Specifications & Review

Article Complete Info
| Articleid | 545760 |
|---|---|
| Category | Cross-motocross |
| Make | KTM |
| Model | 450 SX Racing |
| Year | 2005 |
Chassis, Suspension, Brakes & Wheels
| Frametype | chromium molybdenum |
|---|---|
| Frontbrakes | Single disc |
| Frontbrakesdiameter | 216 mm (8.5 inches) |
| Frontsuspension | WP-USD 48 mm (1.89 inch) |
| Rake | 26.5° |
| Rearbrakes | Single disc |
| Rearbrakesdiameter | 260 mm (10.2 inches) |
| Rearsuspension | WP-PDS shock absorber |
| Rearwheeltravel | 335 mm (13.2 inches) |
| Trail | 112 mm (4.4 inches) |
Engine & Transmission
| Borexstroke | 95.0 x 63.4 mm (3.7 x 2.5 inches) |
|---|---|
| Clutch | Wet multi-disc clutch, operated hydraulically |
| Compression | 12.0:1 |
| Coolingsystem | Liquid |
| Displacement | 449.40 ccm (27.42 cubic inches) |
| Enginedetails | Single cylinder, four-stroke |
| Fuelsystem | Carburettor. Keihin MX FCR 41 |
| Gearbox | 4-speed |
| Ignition | Kokusan digital 4K-3A |
| Lubricationsystem | Pressure lubrication with 2 Eaton pumps |
| Transmissiontypefinaldrive | Chain |
Other Specifications
| Starter | Kick |
|---|
Physical Measures & Capacities
| Dryweight | 105.2 kg (231.9 pounds) |
|---|---|
| Fuelcapacity | 7.00 litres (1.85 gallons) |
| Groundclearance | 385 mm (15.2 inches) |
| Overallwidth | 450 mm (17.7 inches) |
| Seatheight | 925 mm (36.4 inches) If adjustable, lowest setting. |
About KTM
Country of Origin:
Austria
Founder:
Hans Trunkenpolz (later joined by Ernst Kronreif)
Best Known For:
Off-road/enduro supremacy, Dakar wins, Duke/RC streetbikes, and READY TO RACE ethos
Company History
KTM evolved from a postwar repair shop into a racing juggernaut by treating competition as R&D. Lightweight two-strokes made the brand a force in motocross and enduro; later four-strokes and advanced electronics cemented dominance. Dakar Rally victories showcased reliability under extreme conditions and fed the Adventure lineup—bikes that balance long-travel composure with startling pace. On the street, the Duke and RC families brought razor geometry and punchy singles/twins to license tiers worldwide, while the 1290 Super Duke and Adventure pushed the IMU-aided edge of performance. Corporate agility—acquisitions, platform sharing with Husqvarna/GASGAS—expanded reach without blurring identity. Historically, KTM changed expectations for chassis feedback and electronics integration in dirt and on road, proving that orange-painted ferocity could also be precise. The brand’s throughline is simple: build light, communicate grip, and let riders go fast safely. Few companies have turned a color and a slogan into such a reliable proxy for results.
