Tomos BT 50 N - 1991 Specifications and Reviews
The 1991 Tomos BT 50 N is a lightweight 50cc sport moped designed for young riders and commuters seeking nimble urban mobility. Powered by a spirited two-stroke engine delivering nearly 5.4 horsepower, it achieves respectable speeds up to 90 km/h while maintaining excellent fuel efficiency. Best known for its reliable Bing carburetor and responsive five-speed transmission, this Slovenian-built machine remains popular among entry-level sport riders.
1991
Engine and Transmission Specifications | |
| Exhaust system | cantor |
| Transmission type,final drive | Chain |
| Gearbox | 5-speed |
| Cooling system | Air |
| Fuel system | Carburettor. Bing 18mm |
| Bore x stroke | 38.0 x 43.0 mm (1.5 x 1.7 inches) |
| Compression | 11.0:1 |
| Max RPM | 8500 |
| Top speed | 90.0 km/h (55.9 mph) |
| Torque | 5.00 Nm (0.5 kgf-m or 3.7 ft.lbs) @ 7500 |
| Power | 5.36 |
| Engine type | Single cylinder, two-stroke |
| Capacity: | 49.00 ccm (2.99 cubic inches) |
| Category | Sport |
| Year | 1991 |
| Model | Tomos BT 50 N |
| | |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Expanding brake (drum brake) |
| Front brakes | Single disc |
| | |
Physical measures and capacities | |
| Fuel capacity | 9.50 litres (2.51 gallons) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Starter | Kick |
Performance Profile & Rider Fit
5.4 hp
Peak Power
55.9 mph
Top Speed
Best For
Track5%
City55%
Cornering40%
Daily Riding30%
Touring8%
Passenger10%
Rider Profile
| Best For | This is a beginner-level moped, well suited to new riders or young learners taking their first steps on two wheels. |
| Purpose | Built as a small-displacement sport moped for short, fun rides around town rather than any serious performance riding. |
| Rider Fit | Very light and low-powered, so it requires minimal physical strength or stamina to handle, though the small proportions may feel cramped for taller riders. |
| Character | A nimble, buzzy little two-stroke with sporty styling that rewards revving it out rather than relying on outright power. |
| Not Ideal For | This is not the machine for anyone wanting real speed, long-distance touring comfort, or a passenger-friendly ride. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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