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Enduro - Offroad · 1999

ATX 50C

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MotoLibrary Score
31 /100 Commuter
Power/Weight
0.04 hp/kg
Top Speed
50 km/h
Engine
50 ccm

1999 Tomos ATX 50C Technical Analysis & Specification Breakdown

Positioned in Tomos's enduro - offroad motorcycle lineup, the 1999 Tomos ATX 50C utilizes a 50 cc (3.1 cu in) air-cooled single cylinder, two-stroke layout. In factory specification, peak output is rated at 2.6 HP (1.9 kW) at 5,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 52 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the ATX 50C measures 80 kg (176 lbs) wet (curb). The 10-liter (2.6 US gal) fuel tank paired with a rated consumption of 3 L/100 km provides an estimated theoretical range of roughly 333 km (207 miles) between fill-ups, while factory top speed is listed at 50 km/h (31 mph).

Specific Output
52 HP/L
Theoretical Range
~333 km (207 mi)
Engine
Displacement 50.0 ccm (3.05 cubic inches)
Engine Type Single cylinder, two-stroke
Engine Details Single cylinder, two-stroke
Power 2.6 HP (1.9 kW)) @ 5500 RPM
Valves/Cylinder 1
Cooling Air
Max RPM 9000
Transmission
Gearbox 5-speed
Final Drive Chain (final drive)
Performance
Top Speed 50.0 km/h (31.1 mph)
Fuel Consumption 3.00 litres/100 km (33.3 km/l or 78.41 mpg)
Greenhouse Gases 69.6 CO2 g/km. (CO2 - Carbon dioxide emission)
Wheels & Brakes
Front Tyre 80/40-18
Rear Tyre 100/50-18
Front Brakes Expanding brake (drum brake)
Rear Brakes Expanding brake (drum brake)
Dimensions & Weight
Dry Weight 70.0 kg (154.3 pounds)
Weight incl. 80.0 kg (176.4 pounds)
Power/Weight 0.0371 HP/kg
Fuel Capacity 10.00 litres (2.64 US gallons)
Reserve Fuel 0.50 litres (0.13 US gallons)
Other
Starter Kick
Color Options Yellow, Red, Blue
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Power
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Weight
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Fuel Capacity
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Brakes
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Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🌲
Best For
Off-Road & Adventure
⚖️
Handling
Very lightweight — easy to handle
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