Benelli BN 251 - Specifications & Review

BN 251

Article Complete Info

Articleid300841
CategoryNaked bike
MakeBenelli
ModelBN 251
Year2020

Chassis, Suspension, Brakes & Wheels

FrametypeTrestle in steel tubes
FrontbrakesSingle disc. ABS
Frontbrakesdiameter280 mm (11.0 inches)
Frontsuspension41mm Upside-down forks
Fronttyre110/70-ZR17
Frontwheeltravel120 mm (4.7 inches)
RearbrakesSingle disc. ABS
Rearbrakesdiameter240 mm (9.4 inches)
RearsuspensionRear swing arm with central shock absorber
Reartyre150/60-ZR17
Rearwheeltravel51 mm (2.0 inches)
WheelsAluminum alloy

Engine & Transmission

Borexstroke72.0 x 61.2 mm (2.8 x 2.4 inches)
ClutchWet
Compression11.2:1
CoolingsystemLiquid
Displacement249.00 ccm (15.19 cubic inches)
EmissiondetailsEuro 4. Catalytic converter and oxygen sensors.
EnginedetailsSingle cylinder, four-stroke
Fuelconsumption4.10 litres/100 km (24.4 km/l or 57.37 mpg)
FuelsystemInjection. Electronic fuel injection with throttle body ø 37 mm
Gearbox6-speed
Greenhousegases95.1 CO2 g/km. (CO2 - Carbon dioxide emission)
LubricationsystemWet sump
Power25.80 HP (18.8 kW)) @ 9250 RPM
Torque21.10 Nm (2.2 kgf-m or 15.6 ft.lbs) @ 8000 RPM
TransmissiontypefinaldriveChain
Valvespercylinder4

Other Specifications

ColoroptionsRed, white, black
StarterElectric

Physical Measures & Capacities

Fuelcapacity17.00 litres (4.49 gallons)
Groundclearance170 mm (6.7 inches)
Overallheight1,125 mm (44.3 inches)
Overalllength2,080 mm (81.9 inches)
Overallwidth810 mm (31.9 inches)
Reservefuelcapacity3.50 litres (0.92 gallons)
Seatheight795 mm (31.3 inches) If adjustable, lowest setting.
Weightincloilgasetc163.0 kg (359.4 pounds)

About Benelli

Country of Origin: Italy
Founder: Teresa Benelli and her sons (Benelli brothers)
Best Known For: Historic GP success; Sei 6-cylinder; modern TNT/Leoncino/TRK families

Company History

Founded in Pesaro in 1911, Benelli is among Italy’s oldest motorcycle marques. It built its name on nimble singles and racing achievements between the wars, then expanded into charismatic roadsters that carried Italian design into everyday life. The 1970s brought the audacious Benelli Sei, the world’s first production inline-six motorcycle, a statement of engineering confidence wrapped in signature Italian lines. Later decades saw turbulence and ownership changes, but the brand endured by leaning into approachable performance and distinctive styling. In the modern era, Benelli’s lineup—TNT nakeds, retro-chic Leoncino, and adventure-oriented TRK models—pairs Italian design leadership with globalized manufacturing, allowing attractive pricing without sacrificing flair. The formula resonates in emerging markets and Europe alike: friendly ergonomics, tractable engines, and dealer networks that make ownership painless. Historically, Benelli symbolizes the resilience of Italian motorcycling culture—craft, racing heritage, and the courage to build something as audacious as a six when the world expects a four. Today’s Benellis may be more pragmatic, but the badge still signals a taste for style and sociable performance, motorcycles that make daily rides feel like occasions.

Other Years

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