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← Serpento
Allround · 2021

Cobra 150

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MotoLibrary Score
35 /100 Commuter
Power/Weight
0.13 hp/kg
Torque
10 Nm
Engine
150 ccm

2021 Serpento Cobra 150 Technical Analysis & Specification Breakdown

Engineered by Serpento for the allround motorcycle segment, the 2021 Serpento Cobra 150 relies on a 149.6 cc (9.1 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 12 HP (8.8 kW) at 8,000 rpm while maximum torque reaches 9.8 Nm (7.2 lb-ft), transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 80.2 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.

On the scales, the Cobra 150 measures 95 kg (209 lbs) dry, translating to a power-to-weight ratio of 0.13 HP/kg (7.92 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,900 mm (74.8 in) wheelbase engineered for planted straight-line stability. The 11-liter (2.9 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Specific Output
80.2 HP/L
Power-to-Weight
0.13 HP/kg (7.92 kg/HP)
Engine
Displacement 149.6 ccm (9.13 cubic inches)
Engine Type Single cylinder, four-stroke
Power 12.0 HP (8.8 kW)) @ 8000 RPM
Torque 9.8 Nm (1.0 kgf-m or 7.2 ft.lbs)
Fuel System Carburettor
Cooling Air
Transmission
Gearbox 5-speed
Final Drive Chain (final drive)
Clutch Wet multi-plate
Chassis
Front Suspension Telescopic fork
Rear Suspension Monoshock
Wheelbase 1900 mm (74.8 inches)
Wheels & Brakes
Front Tyre 2.50-13
Rear Tyre 2.75-13
Front Brakes Single disc
Rear Brakes Expanding brake (drum brake)
Dimensions & Weight
Dry Weight 95.0 kg (209.4 pounds)
Power/Weight 0.1263 HP/kg
Overall Length 1867 mm (73.5 inches)
Overall Width 1025 mm (40.4 inches)
Fuel Capacity 11.00 litres (2.91 US gallons)
Other
Starter Electric & kick
Color Options Black/red
Electrical 12V / 7A battery
Notes

Sold in South-America. Produced in China.

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Before You Compare This Bike

Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.

Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
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
All-Round & Adventure
⚖️
Handling
Very lightweight — easy to handle
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