14 August. Friday 2026
Fosti F51 - 2021 Specifications and Reviews
The 2021 Fosti F51 is an entry-level naked bike designed for new riders and commuters seeking an affordable, fuel-efficient machine. Its lightweight 149cc single-cylinder engine delivers modest power while achieving excellent fuel economy of over 106 mpg, making it ideal for daily urban riding and budget-conscious ownership.
2021
General information | |
| Category | Naked bike |
| Year | 2021 |
| Model | Fosti F51 |
Engine and Transmission Specifications | |
| Greenhouse gases | 51.0 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel consumption | 2.20 litres/100 km (45.5 km/l or 106.92 mpg) |
| Top speed | 90.0 km/h (55.9 mph) |
| Torque | 9.0 Nm (0.9 kgf-m or 6.6 ft.lbs) @ 7500 RPM |
| Power | 12.1 HP (8.8 kW) @ 9000 RPM |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 149.0 ccm (9.09 cubic inches) |
| | |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Expanding brake (drum brake) |
| Front brakes | Single disc |
| Rear tire | 110/80-17 |
| Front tire | 90/90-17 |
| Rear Suspension | Dual shocks |
| Front Suspension | Telescopic fork |
Physical measures and capacities | |
| Fuel capacity | 15.00 litres (3.96 US gallons) |
| Wheelbase | 1350 mm (53.1 inches) |
| Overall width | 760 mm (29.9 inches) |
| Overall length | 1990 mm (78.3 inches) |
| Overall height | 1100 mm (43.3 inches) |
| Power/weight ratio | 0.1050 HP/kg |
| Weight incl. oil, gas, etc | 128.0 kg (282.2 pounds) |
| Dry weight | 115.0 kg (253.5 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Color options | Blue |
Performance Profile & Rider Fit
12.1 hp
Peak Power
55.9 mph
Top Speed
Best For
Track10%
City80%
Cornering40%
Daily Riding65%
Touring15%
Passenger20%
Rider Profile
| Best For | This is an ideal machine for beginners or new riders still building confidence and basic skills. |
| Purpose | It's built for light urban commuting and short, low-speed trips around town rather than performance riding. |
| Rider Fit | Its low weight and small dimensions make it easy to handle and manage for riders of almost any size or strength. |
| Character | It has a friendly, unintimidating nature suited to learners and economical daily runabouts. |
| Not Ideal For | It's not for experienced riders seeking highway speeds, long-distance touring, or spirited performance riding. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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Rider Reviews
Total comments: 1
MotorcycleDB Review
The 2021 Fosti F51 motorcycle is a sleek and stylish ride that offers a smooth and powerful performance. With its 150cc engine, this bike delivers impressive speed and acceleration, making it a great choice for motorcycle enthusiasts. The F51 also boasts a comfortable seating position and a responsive handling, making it a joy to ride on both city streets and open highways. In addition to its performance capabilities, the 2021 Fosti F51 motorcycle features a modern and eye-catching design that is sure to turn heads. Its sleek lines and bold color options make it a standout choice for riders who want to make a statement on the road. Overall, the F51 offers a winning combination of performance, style, and comfort, making it a top contender in the 150cc motorcycle category.Add a Comment
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