Back to Bike FinderYears: 2020 · 2019 · 2018 · 2017 · 2016 · 2015
Benelli BN 251
2018Naked

Benelli BN 251

Key specifications

Engine
249 cc
Power
25 HP
Torque
21 Nm
Weight
145 kg
Fuel type
petrol
Fuel capacity
4.5 L
Transmission
6-speed
Seat height
31 mm
Front brakes
Single disc. ABS
Rear brakes
Single disc. ABS

Overview

Introducing the 2018 Benelli BN 251, a striking naked bike that perfectly captures the essence of urban riding. With its bold design and powerful performance, the BN 251 is tailored for both novice riders and seasoned enthusiasts seeking an agile companion for city commutes or weekend adventures. Benelli, known for blending Italian flair with practical engineering, has positioned the BN 251 as a lightweight and approachable motorcycle, making it an ideal choice for those who crave excitement without sacrificing everyday usability. At the heart of the BN 251 is a robust 249.20 ccm single-cylinder, four-stroke engine that delivers a commendable 25 horsepower at 9,250 RPM and 21.20 Nm of torque at 8,000 RPM. This liquid-cooled powerhouse is designed for spirited performance, offering a responsive throttle that makes navigating tight corners and bustling streets a breeze. The 6-speed gearbox ensures smooth gear transitions while the bike’s lightweight frame, weighing in at just 145 kg (319.7 lbs), enhances its agility and maneuverability. The BN 251’s power-to-weight ratio of 0.1724 HP/kg allows riders to enjoy a lively ride, making it a perfect partner for urban exploration and spirited rides on winding roads. The BN 251 is not just about engine performance; it also boasts a range of features that elevate the riding experience. Its trestle steel tube frame provides rigidity and stability, while the upside-down front forks offer a plush 120 mm of travel, ensuring a comfortable ride, even on rough urban terrain. The bike is equipped with ABS for both front (280 mm) and rear (240 mm) brakes, enhancing safety without compromising performance. Additionally, the sleek design is available in a palette of eye-catching colors—white, black, and red—allowing riders to express their individuality. With a generous fuel capacity of 17 liters, the BN 251 is ready for longer journeys, making it as practical as it is stylish. **

Pros

  • Lightweight and Agile: At just 145 kg, the BN 251 is easy to handle, making it perfect for city riding and maneuvering through traffic.
  • Responsive Engine Performance: The single-cylinder engine provides a good balance of power and torque, delivering an engaging riding experience.
  • Modern Safety Features: Equipped with ABS on both front and rear brakes, the BN 251 enhances rider confidence and safety.

Cons

  • Limited Power Output: While the bike is designed for urban use, some riders may find the 25 HP output insufficient for highway cruising.
  • Minimal Rear Suspension Travel: The rear suspension offers only 51 mm of travel, which may limit comfort on rougher roads compared to competitors.
  • Seat Height Considerations: With a seat height of 795 mm, it may not be suitable for shorter riders without some adjustments.

Technical details

Source specification data

Make
Benelli
Model
BN 251
Category
Naked bike
Starter
Electric
Color Options
White, black, red
Power
25.00 HP (18.2 kW)) @ 9250 RPM
Clutch
Wet clutch
Torque
21.20 Nm (2.2 kgf-m or 15.6 ft.lbs) @ 8000 RPM
Gearbox
6-speed
Ignition
CDI
Fuel System
Injection
Bore X Stroke
72.0 x 61.5 mm (2.8 x 2.4 inches)
Compression
11.2:1
Displacement
249.20 ccm (15.21 cubic inches)
Cooling System
Liquid
Engine Details
Single cylinder, four-stroke
Emission Details
Euro 3, catalytic converter and oxygen sensors.
Lubrication System
Wet sump
Valves Per Cylinder
4
Transmission Type Final Drive
Chain
Dry Weight
145.0 kg (319.7 pounds)
Seat Height
795 mm (31.3 inches) If adjustable, lowest setting.
Fuel Capacity
17.00 litres (4.49 gallons)
Overall Width
810 mm (31.9 inches)
Overall Height
1,125 mm (44.3 inches)
Overall Length
2,080 mm (81.9 inches)
Ground Clearance
140 mm (5.5 inches)
Power Weight Ratio
0.1724 HP/kg
Reserve Fuel Capacity
3.50 litres (0.92 gallons)
Rear Tyre
150/60-ZR17
Frame Type
Trestle in steel tubes
Front Tyre
110/70-ZR17
Rear Brakes
Single disc. ABS
Front Brakes
Single disc. ABS
Rear Suspension
Rear swing arm with central rear shock absorber
Front Suspension
Upside-down forks
Rear Wheel Travel
51 mm (2.0 inches)
Front Wheel Travel
120 mm (4.7 inches)
Rear Brakes Diameter
240 mm (9.4 inches)
Front Brakes Diameter
280 mm (11.0 inches)

Available colors

Whiteblackred