Benelli BN 125 - 2021 Specifications and Reviews

The 2021 Benelli BN 125 is an entry-level naked bike designed for beginner riders and commuters seeking an affordable, reliable two-wheeler. Powered by an air-cooled single-cylinder four-stroke engine producing 11.1 horsepower, it offers manageable performance and fuel efficiency. The bike is best known for delivering practical everyday transportation with straightforward styling and accessible handling characteristics.

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General information

CategoryNaked bike
Year2021
ModelBenelli BN 125

Engine and Transmission Specifications

Emission detailsEuro 4. Catalytic Converter and Oxygen Sensor.
Greenhouse gases39.4 CO2 g/km. (CO2 - Carbon dioxide emission)
Fuel consumption1.70 litres/100 km (58.8 km/l or 138.37 mpg)
ClutchWet  multi-plate
Transmission typeChain   (final drive)
Gearbox5-speed
Cooling systemAir
Lubrication systemForced lubrication with wet sump
IgnitionDelphi
Fuel controlSingle Overhead Cams (SOHC)
Fuel systemInjection. Electronic fuel injection with throttle body d.28
Bore x Stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Compression9.8:1
Torque10.0 Nm (1.0 kgf-m or 7.4 ft.lbs) @ 7000 RPM
Power11.1 HP (8.1 kW) @ 9500 RPM
Engine typeSingle cylinder, four-stroke
Capacity:125.0 ccm (7.63 cubic inches)
 
 

Brakes, suspension, Frame and wheels

Rear brakesSingle disc
Diameter260 mm (10.2 inches)
Front brakesSingle disc
Rear tire130/70-17
Front tire110/80-17
Rear wheel travel40 mm (1.6 inches)
Rear SuspensionRear swing arm with central shock absorber with spring pre-load adjustment
Front wheel travel111 mm (4.4 inches)
Front SuspensionTelescopic fork
Frame typeTrestle in steel tubes
 
 

Physical measures and capacities

Fuel capacity13.50 litres (3.57 US gallons)
Wheelbase1360 mm (53.5 inches)
Ground clearance190 mm (7.5 inches)
Overall width810 mm (31.9 inches)
Overall length2050 mm (80.7 inches)
Overall height1065 mm (41.9 inches)
Seat height770 mm (30.3 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc142.0 kg (313.1 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
StarterElectric
Color optionsRed, Black, White, Green

Performance Profile & Rider Fit

11.1 hp
Peak Power

Best For

Track15%
City85%
Cornering55%
Daily Riding75%
Touring20%
Passenger30%

Rider Profile

Best ForThis bike suits beginners and new riders who want a light, unintimidating machine to build confidence on.
PurposeIt is built primarily for commuting and everyday urban riding rather than performance or long-distance travel.
Rider FitIts low seat height and light weight make it accessible to riders of smaller stature or those wanting a manageable, easy-to-handle bike.
CharacterA friendly, approachable naked bike with modest performance, styled to look more aggressive than its small single-cylinder engine actually delivers.
Not Ideal ForThis is not a good fit for experienced riders seeking highway speed, sustained touring comfort, or any off-road capability.

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

Rider Fit Visualizer

2021 Benelli BN 125 Rider Ergonomics Assessment

Calculated in your browser only - your height/inseam are never sent to our servers.

Feet:

At 770mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2021 Benelli BN 125, with a moderate knee angle of around 115 degrees and a forward-leaning 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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Rider Reviews

Total comments: 1
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MotorcycleDB Review

The 2021 Benelli BN 125 motorcycle is a sleek and stylish option for riders looking for a capable and agile bike. With a 125cc engine, this bike offers a perfect balance of power and fuel efficiency. The lightweight design makes it easy to maneuver in urban settings, while the comfortable seating position allows for long rides without fatigue. The BN 125's modern styling and advanced features make it an excellent choice for beginner riders or those looking for a reliable daily commuter. Overall, the 2021 Benelli BN 125 motorcycle is a fantastic option for riders looking for a reliable, fuel-efficient, and stylish bike. Whether you're a beginner rider or a seasoned pro looking for a nimble and affordable commuter, the BN 125 offers a winning combination of performance and style. With its sleek design, comfortable seating, and reliable engine, this motorcycle is sure to appeal to a wide range of riders.
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