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Prototype - Concept Model · 2008

cobra 320

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MotoLibrary Score
36 /100 Commuter
Power/Weight
0.09 hp/kg
Top Speed
82 km/h
Torque
22 Nm
Engine
272 ccm

2008 aeon cobra 320 Technical Analysis & Specification Breakdown

Built around aeon's prototype - concept model motorcycle platform, the 2008 aeon cobra 320 relies on a 272.3 cc (16.6 cu in) single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 18.8 HP (13.7 kW) at 6,500 rpm while maximum torque reaches 22 Nm (16.2 lb-ft) at 5,500 rpm. With a specific output of 69 HP per liter and a 1,000 rpm working window between peak torque (5,500 rpm) and peak power (6,500 rpm), 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 320 measures 206 kg (454 lbs) dry, translating to a power-to-weight ratio of 0.09 HP/kg (10.96 kg per horsepower). Rider ergonomics and chassis geometry center around a 790 mm (31.1 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,300 mm (51.2 in) wheelbase engineered for quick, flickable steering geometry. The 8.5-liter (2.2 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 82 km/h (51 mph).

Within MotoLibrary's aeon archive, this model family spans 3 indexed model years from 2008 to 2010, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
69 HP/L
Power-to-Weight
0.09 HP/kg (10.96 kg/HP)
Power Band Window
5,500–6,500 rpm
Standover Height
790 mm (31.1 in)
Engine
Displacement 272.3 ccm (16.62 cubic inches)
Engine Type Single cylinder, four-stroke
Engine Details Single cylinder, four-stroke
Power 18.8 HP (13.7 kW)) @ 6500 RPM
Torque 22.0 Nm (2.2 kgf-m or 16.2 ft.lbs) @ 5500 RPM
Compression 10.3:1
Bore x Stroke 72.7 x 65.6 mm (2.9 x 2.6 inches)
Fuel System Carburettor. Keihin PTG 22
Ignition C.D.I.
Lubrication Wet sump, Oil pump pressurized
Transmission
Clutch Centrifugal clutch
Performance
Top Speed 82.0 km/h (51.0 mph)
Chassis
Trail 153 mm (6.0 inches)
Front Suspension Dual hydraulic shock, Double wishbone
Front Travel 165 mm (6.5 inches)
Rear Suspension Single hydraulic shock, Unit swing arm
Wheelbase 1300 mm (51.2 inches)
Ground Clearance 170 mm (6.7 inches)
Wheels & Brakes
Front Brakes Double disc
Rear Brakes Single disc
Dimensions & Weight
Dry Weight 206.0 kg (454.2 pounds)
Power/Weight 0.0911 HP/kg
Seat Height 790 mm (31.1 inches) If adjustable, lowest setting.
Overall Height 1130 mm (44.5 inches)
Overall Length 1831 mm (72.1 inches)
Overall Width 1150 mm (45.3 inches)
Fuel Capacity 8.50 litres (2.25 US gallons)
Other
Starter Electric & kick
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Buying Checklist

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Power
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Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Seat Height
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Weight
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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.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🏍️
Best For
General Purpose
📏
Seat Height
79 cm / 31.1 in
⚖️
Handling
Medium weight — some experience needed
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