Built around Highland's cross - motocross motorcycle platform, the 2009 Highland 450 MX utilizes a 449 cc (27.4 cu in) liquid-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 56.4 HP (41.2 kW) at 8,500 rpm while maximum torque reaches 51.1 Nm (37.7 lb-ft) at 7,300 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 125.6 HP per liter and a 1,200 rpm working window between peak torque (7,300 rpm) and peak power (8,500 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the 450 MX measures 103 kg (227 lbs) dry, translating to a power-to-weight ratio of 0.55 HP/kg (1.83 kg per horsepower). Rider ergonomics and chassis geometry center around a 998 mm (39.3 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,485 mm (58.5 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 Highland archive, this model family spans 4 indexed model years from 2006 to 2009, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
125.6 HP/L
Power-to-Weight
0.55 HP/kg (1.83 kg/HP)
Power Band Window
7,300–8,500 rpm
Standover Height
998 mm (39.3 in)
Engine
Displacement449.0 ccm (27.40 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power56.4 HP (41.2 kW)) @ 8500 RPM
Torque51.1 Nm (5.2 kgf-m or 37.7 ft.lbs) @ 7300 RPM
Compression12.2:1
Bore x Stroke96.0 x 62.1 mm (3.8 x 2.4 inches)
Valves/Cylinder4
Fuel SystemInjection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionHighland integrated engine management system with ignition coil fitted directly on the spark plug
LubricationWet sump, filter, pressure lubricated crankshaft and gearbox
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchLubricated multi disk
Chassis
Frame TypeHy-Tens. VTS OUTOKUMPU Stailnless steel
Front SuspensionÖhlins/Marzocchi
Rear SuspensionÖhlins
Wheelbase1485 mm (58.5 inches)
Ground Clearance350 mm (13.8 inches)
Wheels & Brakes
Front BrakesSingle disc. Brembo double piston floating caliper
Front Brake Ø260 mm (10.2 inches)
Rear BrakesSingle disc. Brembo floating caliper
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Dry Weight103.0 kg (227.1 pounds)
Power/Weight0.5476 HP/kg
Seat Height998 mm (39.3 inches) If adjustable, lowest setting.
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.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
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.
