2018 Benelli BN 251
Specifications
- Category
- Naked bike
- Displacement
- 249.2 ccm (15.21 cubic inches)
- Displacement (cc)
- 249.20
- Engine details
- Single cylinder, four-stroke
- Power
- 25.0 HP (18.2 kW) @ 9250 RPM
- Torque
- 21.2 Nm (2.2 kgf-m or 15.6 ft.lbs) @ 8000 RPM
- Compression
- 11.2:1
- Bore × stroke
- 72.0 x 61.5 mm (2.8 x 2.4 inches)
- Valves/cyl
- 4.0
- Fuel system
- Injection
- Fuel control
- Double Overhead Cams/Twin Cam (DOHC)
- Ignition
- CDI
- Lubrication
- Wet sump
- Cooling
- Liquid
- Gearbox
- 6-speed
- Transmission
- Chain (final drive)
- Clutch
- Wet clutch
- Frame
- Trestle in steel tubes
- Front suspension
- Upside-down forks
- Front travel
- 120 mm (4.7 inches)
- Rear suspension
- Rear swing arm with central rear shock absorber
- Rear travel
- 51 mm (2.0 inches)
- Front tyre
- 110/70-ZR17
- Rear tyre
- 150/60-ZR17
- Front brakes
- Single disc. ABS
- Front brake Ø
- 280 mm (11.0 inches)
- Rear brakes
- Single disc. ABS
- Rear brake Ø
- 240 mm (9.4 inches)
- Dry weight
- 145.0 kg (319.7 pounds)
- Seat height
- 795 mm (31.3 inches) If adjustable, lowest setting.
- Height
- 1125 mm (44.3 inches)
- Length
- 2080 mm (81.9 inches)
- Width
- 810 mm (31.9 inches)
- Wheelbase
- 1400 mm (55.1 inches)
- Fuel capacity
- 17.00 litres (4.49 US gallons)
- Colours
- White, black, red
- Starter
- Electric
The 2018 Benelli BN 251
2018 Benelli BN 251 sits at the entry point of Benelli's naked bike range, aimed squarely at new riders and commuters rather than seasoned veterans looking for a thrill machine. This is a small-displacement street bike built for city traffic, learner license requirements, and the kind of daily riding where low seat height and manageable weight matter more than outright speed. The quarter-liter engine delivers its power in a friendly, predictable way that rewards smooth throttle inputs rather than aggressive riding, and the upright naked-bike ergonomics keep you comfortable through a full commute or a weekend backroad loop. It's not a bike that flatters showing off, but it is one that builds real riding skill. The 2018 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 2017 example should focus on mileage, service history, and condition rather than spec differences. Expect the buyer pool here to be newer riders, budget-conscious commuters, or people downsizing from something heavier they found intimidating. Collector interest is minimal, so value in the 2018 Benelli BN 251 comes from usability and mechanical condition, not rarity or investment upside.
