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Classic · 1970

125 Sprite 5

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MotoLibrary Score
39 /100 Commuter
Power
12 HP
Top Speed
130 km/h
Engine
124 ccm

1970 Motobi 125 Sprite 5 Technical Analysis & Specification Breakdown

Engineered by Motobi for the classic motorcycle segment, the 1970 Motobi 125 Sprite 5 relies on a 124 cc (7.6 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 12 HP (8.8 kW) at 10,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 96.8 HP per liter, the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the 125 Sprite 5 measures 111 kg (245 lbs) wet (curb), translating to a power-to-weight ratio of 0.11 HP/kg (9.25 kg per horsepower). The 12.5-liter (3.3 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 130 km/h (81 mph).

Specific Output
96.8 HP/L
Power-to-Weight
0.11 HP/kg (9.25 kg/HP)
Engine
Displacement 124.0 ccm (7.57 cubic inches)
Engine Type Single cylinder, four-stroke
Engine Details Single cylinder, four-stroke
Power 12.0 HP (8.8 kW)) @ 10000 RPM
Compression 9.5:1
Bore x Stroke 54.0 x 54.0 mm (2.1 x 2.1 inches)
Valves/Cylinder 2
Fuel Control Overhead Valves (OHV)
Cooling Air
Transmission
Gearbox 5-speed
Final Drive Chain (final drive)
Performance
Top Speed 130.0 km/h (80.8 mph)
Wheels & Brakes
Front Tyre 2.50-18
Rear Tyre 2.75-18
Front Brakes Expanding brake
Rear Brakes Expanding brake
Dimensions & Weight
Weight incl. 111.0 kg (244.7 pounds)
Fuel Capacity 12.50 litres (3.30 US gallons)
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Beginner
A2 license compatible, manageable power.
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