2005 KTM 450 SX Racing Technical Analysis & Specification Breakdown
Built around KTM's cross - motocross motorcycle platform, the 2005 KTM 450 SX Racing pairs a 449.4 cc (27.4 cu in) liquid-cooled single cylinder, four-stroke architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 95.0 x 63.4 mm (3.7 x 2.5 inches) with a 12.0:1 compression ratio.
On the scales, the 450 SX Racing measures 105.2 kg (232 lbs) dry. Rider ergonomics and chassis geometry center around a 925 mm (36.4 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,481 mm (58.3 in) wheelbase engineered for balanced agility and highway composure. The 7-liter (1.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's KTM archive, this model family spans 3 indexed model years from 2003 to 2005, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
925 mm (36.4 in)
Engine
Displacement449.4 ccm (27.42 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Compression12.0:1
Bore x Stroke95.0 x 63.4 mm (3.7 x 2.5 inches)
Fuel SystemCarburettor. Keihin MX FCR 41
IgnitionKokusan digital 4K-3A
Lubricationpressure lubrication with 2 Eaton pumps
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
