Benelli BX 449 Cross - 2011 Specifications and Reviews

The 2011 Benelli BX 449 Cross is a single-cylinder four-stroke motocross bike designed for amateur and recreational off-road riders seeking affordable entry-level performance. Powered by a 449cc engine producing 55 horsepower with titanium valves and a Keihin carburettor, it delivers responsive handling and reliable power delivery across varied terrain. Best known for its accessible price point and manageable power delivery, this machine suits riders transitioning from smaller displacement bikes.

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General information

CategoryCross / motocross
Year2011
ModelBenelli BX 449 Cross
 
 

Engine and Transmission Specifications

ClutchWet, 7 steel disks
Transmission type,final driveChain
Gearbox5-speed
Lubrication systemWet sump and reeds
IgnitionKokusan CDI digitale
Fuel controlDOHC
Fuel systemCarburettor. Keihin FCR MX 41
Valves per cylinder4
Bore x stroke98.0 x 59.5 mm (3.9 x 2.3 inches)
Compression12.5:1
Torque45.00 Nm (4.6 kgf-m or 33.2 ft.lbs) @ 7000
Power55.38
Engine detailsTitanium valves
Engine typeSingle cylinder, four-stroke
Capacity:449.00 ccm (27.40 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc. Wave
Front brakes diameter260 mm (10.2 inches)
Front brakesSingle disc. Wave
Rear tyre dimensions110/90-19
Front tyre dimensions80/100-21
Rear suspensionSachs shock absorber fully adjustable
Front suspension50 mm fully adjustable
Trail110 mm (4.3 inches)
Rake (fork angle)26.5°
Frame typeSingle tube cradle with forged, casted and extruded elements and carbon structural parts.
 
 

Physical measures and capacities

Fuel capacity9.00 litres (2.38 gallons)
Wheelbase1,450 mm (57.1 inches)
Overall width810 mm (31.9 inches)
Overall length2,160 mm (85.0 inches)
Seat height960 mm (37.8 inches) If adjustable, lowest setting.
Power/weight ratio0.5128 HP/kg
Dry weight108.0 kg (238.1 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Color optionsGreen
StarterKick

Performance Profile & Rider Fit

55.4 hp
Peak Power

Best For

Track30%
City15%
Cornering70%
Daily Riding10%
Touring8%
Passenger5%

Rider Profile

Best ForThis is a competition-focused motocross machine best suited to experienced off-road riders comfortable with a tall, aggressive, race-oriented setup.
PurposeBuilt purely for motocross tracks and rough off-road terrain, not as a road-legal or all-purpose machine.
Rider FitThe tall 960mm seat height, kick starter, and light 108kg dry weight demand good physical fitness, leg length, and confidence standing on the pegs.
CharacterA raw, high-strung single-cylinder motocrosser with sharp throttle response, minimal weight, and razor-sharp handling for jumps and berms.
Not Ideal ForThis bike is not for commuting, touring, carrying a passenger, or riders seeking comfort and low-effort ergonomics.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2011 Benelli BX 449 Cross Rider Ergonomics Assessment

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Feet:

At 960mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with cannot reach comfortably on the 2011 Benelli BX 449 Cross, with a cramped knee angle of around 85 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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