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Benelli BN 251
2017Naked

Benelli BN 251

Key specifications

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

Overview

Introducing the 2017 Benelli BN 251, a naked bike that brings an exciting blend of Italian styling and practical performance to the entry-level motorcycle segment. With its sharp lines, aggressive stance, and dynamic presence, the BN 251 is designed for both new riders looking to make their mark and seasoned enthusiasts who appreciate a compact, nimble ride. Positioned as an optimal choice for urban commuting and weekend jaunts, this motorcycle combines style, versatility, and a spirited riding experience, making it a standout in the crowded market of lightweight bikes. At the heart of the BN 251 lies a robust 249.20cc single-cylinder, four-stroke engine that delivers a punchy 25 horsepower at 9,000 RPM and 21.5 Nm of torque at 7,500 RPM. With a compression ratio of 11.2:1 and a smooth 6-speed gearbox, this machine is built for spirited acceleration and agility in city traffic. Riders can expect a thrilling response as they twist the throttle, thanks to the efficient fuel injection system and liquid cooling that ensures optimal performance, even on warmer days. The lightweight frame, weighing just 143 kg (315.3 lbs), offers a power-to-weight ratio of 0.1748 HP/kg, allowing for nimble handling and easy maneuverability that urban riders will find particularly appealing. The BN 251 is not just about raw performance; it also integrates several key features that enhance the riding experience. The trestle frame constructed from steel tubes provides durability without compromising weight, while the upside-down front forks and rear swing arm suspension with a central shock absorber ensure a smooth ride over various terrains. Stopping power is handled by single discs at both the front (280 mm) and rear (240 mm), giving riders confidence in their braking capabilities. Additionally, the electric starter and attractive color options—white, black, and red—make the BN 251 a stylish and convenient choice for daily riding. **

Pros

  • Agile Handling: Lightweight design and compact dimensions make it perfect for city navigation.
  • Stylish Design: Eye-catching aesthetics with a modern naked bike look that stands out on the road.
  • User-Friendly Performance: The engine offers a great balance of power and efficiency, making it ideal for new riders.

Cons

  • Limited Power for Highways: While great for city rides, the 25 HP may feel underwhelming for extended highway cruising.
  • Suspension Travel: Shorter rear suspension travel may not absorb larger bumps as effectively as some competitors.
  • Seat Comfort: The seat height of 795 mm may be challenging for shorter riders and may require additional comfort upgrades for longer rides.

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)) @ 9000 RPM
Clutch
Wet clutch
Torque
21.50 Nm (2.2 kgf-m or 15.9 ft.lbs) @ 7500 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
143.0 kg (315.3 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
2,125 mm (83.7 inches)
Ground Clearance
140 mm (5.5 inches)
Power Weight Ratio
0.1748 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
Front Brakes
Single disc
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