What category is the 1991 Tomos BT?

The 1991 Tomos BT has a Category of Sport.

What is the engine size of the 1991 Tomos BT?

The 1991 Tomos BT has a Capacity: of 49.00 ccm (2.99 cubic inches).

What type of engine does the 1991 Tomos BT have?

The 1991 Tomos BT has a Engine type of Single cylinder, two-stroke.

What is the engine power of the 1991 Tomos BT?

The 1991 Tomos BT has a Power of 5.36.

What is the torque of the 1991 Tomos BT?

The 1991 Tomos BT has a Torque of 5.00 Nm (0.5 kgf-m or 3.7 ft.lbs) @ 7500.

What is the top speed of the 1991 Tomos BT?

The 1991 Tomos BT has a Top speed of 90.0 km/h (55.9 mph).

Is the 1991 Tomos BT air cooled or liquid cooled?

The 1991 Tomos BT has a Cooling system of Air.

How many gears does the 1991 Tomos BT have?

The 1991 Tomos BT has a Gearbox of 5-speed.

Tomos BT - 1991 Specifications and Reviews

Name: 1991 Tomos BT
Brand: Tomos

The 1991 Tomos BT is a lightweight 49cc sport moped ideal for novice riders and urban commuters seeking affordable, nimble transportation. Powered by a spirited two-stroke single-cylinder engine producing 5.36 horsepower, it delivers genuine performance for its class with a top speed of 90 km/h. Known for its responsive handling and reliability, the BT represents the pinnacle of accessible two-stroke sport mopeds.

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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

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

Track10%

City70%

Cornering40%

Daily Riding45%

Touring8%

Passenger10%

Rider Profile

Best For	This is a beginner-friendly moped ideal for new riders or teenagers just learning throttle and clutch control.
Purpose	Built as a lightweight 49cc sport moped for short urban hops and cheap, nimble commuting rather than any kind of serious performance riding.
Rider Fit	Very low physical demand, with a small, light frame that suits riders of almost any size or strength.
Character	A fun, buzzy little two-stroke with a playful character that rewards revving it out rather than relying on outright power.
Not Ideal For	Not suitable for highway travel, long-distance touring, carrying a passenger comfortably, or anyone seeking real speed and power.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.