Engineered by Benelli for the cross - motocross motorcycle segment, the 2011 Benelli BX 449 Cross pairs a 449 cc (27.4 cu in) single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 55.4 HP (40.4 kW) at 9,500 rpm while maximum torque reaches 45 Nm (33.2 lb-ft) at 7,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 123.4 HP per liter and a 2,500 rpm working window between peak torque (7,000 rpm) and peak power (9,500 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 BX 449 Cross measures 108 kg (238 lbs) dry, translating to a power-to-weight ratio of 0.51 HP/kg (1.95 kg per horsepower). Rider ergonomics and chassis geometry center around a 960 mm (37.8 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,450 mm (57.1 in) wheelbase engineered for balanced agility and highway composure. The 9-liter (2.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Benelli archive, this model family spans 3 indexed model years from 2008 to 2011, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
123.4 HP/L
Power-to-Weight
0.51 HP/kg (1.95 kg/HP)
Power Band Window
7,000–9,500 rpm
Standover Height
960 mm (37.8 in)
Engine
Displacement449.0 ccm (27.40 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsTitanium valves
Power55.4 HP (40.4 kW)) @ 9500 RPM
Torque45.0 Nm (4.6 kgf-m or 33.2 ft.lbs) @ 7000 RPM
Compression12.5:1
Bore x Stroke98.0 x 59.5 mm (3.9 x 2.3 inches)
Valves/Cylinder4
Fuel SystemCarburettor. Keihin FCR MX 41
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionKokusan CDI digitale
LubricationWet sump and reeds
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet, 7 steel disks
Chassis
Frame TypeSingle tube cradle with forged, casted and extruded elements and carbon structural parts.
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.
