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← Giantco
Scooter · 2009

Dolphin Twin 125

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MotoLibrary Score
34 /100 Commuter
Power/Weight
0.08 hp/kg
Torque
7 Nm
Engine
125 ccm

2009 Giantco Dolphin Twin 125 Technical Analysis & Specification Breakdown

Built around Giantco's scooter motorcycle platform, the 2009 Giantco Dolphin Twin 125 pairs a 124.6 cc (7.6 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 7.5 HP (5.5 kW) while maximum torque reaches 7.2 Nm (5.3 lb-ft), transferring power to the rear wheel through belt final drive. With a specific output of 60.2 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 Dolphin Twin 125 measures 95 kg (209 lbs) dry, translating to a power-to-weight ratio of 0.08 HP/kg (12.67 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,330 mm (52.4 in) wheelbase engineered for quick, flickable steering geometry. The 4.2-liter (1.1 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Specific Output
60.2 HP/L
Power-to-Weight
0.08 HP/kg (12.67 kg/HP)
Engine
Displacement 124.6 ccm (7.60 cubic inches)
Engine Type Single cylinder, four-stroke
Engine Details Single cylinder, four-stroke
Power 7.5 HP (5.5 kW))
Torque 7.2 Nm (0.7 kgf-m or 5.3 ft.lbs)
Compression 9.2:1
Bore x Stroke 39.0 x 41.5 mm (1.5 x 1.6 inches)
Fuel Control Single Overhead Cams (SOHC)
Cooling Air
Transmission
Final Drive Belt (final drive)
Chassis
Frame Type Steel
Front Suspension Oil damped telescopic fork
Rear Suspension Oil damped coil spring
Wheelbase 1330 mm (52.4 inches)
Wheels & Brakes
Front Tyre 3.50-10
Rear Tyre 3.50-10
Front Brakes Single disc
Rear Brakes Expanding brake (drum brake)
Dimensions & Weight
Dry Weight 95.0 kg (209.4 pounds)
Power/Weight 0.0789 HP/kg
Overall Length 1874 mm (73.8 inches)
Fuel Capacity 4.20 litres (1.11 US gallons)
Oil Capacity 0.80 litres (0.85 US quarts)
Other
Color Options Red
More from Giantco
Buying Checklist

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.
Rider Profile

Who Is This Bike For?

🟢
Beginner
A2 license compatible, manageable power.
🏙️
Best For
City & Commuting
⚖️
Handling
Very lightweight — easy to handle
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