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Scooter · 2009

G 125 RT Retro

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

2009 Goes G 125 RT Retro Technical Analysis & Specification Breakdown

Positioned in Goes's scooter motorcycle lineup, the 2009 Goes G 125 RT Retro relies on a 124.6 cc (7.6 cu in) air-cooled single cylinder, four-stroke powerplant. In factory specification, peak output is rated at 8 HP (5.9 kW) at 8,000 rpm while maximum torque reaches 7 Nm (5.2 lb-ft) at 5,500 rpm, transferring power to the rear wheel through belt final drive. With a specific output of 64.2 HP per liter and a 2,500 rpm working window between peak torque (5,500 rpm) and peak power (8,000 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 G 125 RT Retro measures 97 kg (214 lbs) dry, translating to a power-to-weight ratio of 0.08 HP/kg (12.13 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,250 mm (49.2 in) wheelbase engineered for quick, flickable steering geometry. The 5-liter (1.3 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Within MotoLibrary's Goes archive, this model family spans 2 indexed model years from 2009 to 2010, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.

Specific Output
64.2 HP/L
Power-to-Weight
0.08 HP/kg (12.13 kg/HP)
Power Band Window
5,500–8,000 rpm
Engine
Displacement 124.6 ccm (7.60 cubic inches)
Engine Type Single cylinder, four-stroke
Engine Details Single cylinder, four-stroke
Power 8.0 HP (5.9 kW)) @ 8000 RPM
Torque 7.0 Nm (0.7 kgf-m or 5.2 ft.lbs) @ 5500 RPM
Fuel System Carburettor
Ignition CDI
Cooling Air
Transmission
Final Drive Belt (final drive)
Chassis
Wheelbase 1250 mm (49.2 inches)
Wheels & Brakes
Front Brakes Single disc
Rear Brakes Expanding brake (drum brake)
Dimensions & Weight
Dry Weight 97.0 kg (213.8 pounds)
Power/Weight 0.0829 HP/kg
Overall Height 1190 mm (46.9 inches)
Overall Length 1891 mm (74.4 inches)
Overall Width 872 mm (34.3 inches)
Fuel Capacity 5.00 litres (1.32 US gallons)
Other
Starter Electric & kick
More from Goes
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.
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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