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Scooter · 2012

Star 4S 125 Classic

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MotoLibrary Score
33 /100 Commuter
Power/Weight
0.06 hp/kg
Torque
9 Nm
Engine
125 ccm

2012 LML Star 4S 125 Classic Technical Analysis & Specification Breakdown

Built around LML's scooter motorcycle platform, the 2012 LML Star 4S 125 Classic features a 124.9 cc (7.6 cu in) air-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 7.8 HP (5.7 kW) at 6,000 rpm while maximum torque reaches 9.2 Nm (6.7 lb-ft) at 5,000 rpm, transferring power to the rear wheel through a 4-speed gearbox and belt final drive. With a specific output of 62.4 HP per liter and a 1,000 rpm working window between peak torque (5,000 rpm) and peak power (6,000 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 Star 4S 125 Classic measures 121 kg (267 lbs) dry, translating to a power-to-weight ratio of 0.06 HP/kg (15.51 kg per horsepower). Rider ergonomics and chassis geometry center around a 1,235 mm (48.6 in) wheelbase engineered for quick, flickable steering geometry. The 5.5-liter (1.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Specific Output
62.4 HP/L
Power-to-Weight
0.06 HP/kg (15.51 kg/HP)
Power Band Window
5,000–6,000 rpm
Engine
Displacement 124.9 ccm (7.62 cubic inches)
Engine Type Single cylinder, four-stroke
Engine Details Single cylinder, four-stroke
Power 7.8 HP (5.7 kW)) @ 6000 RPM
Torque 9.2 Nm (0.9 kgf-m or 6.7 ft.lbs) @ 5000 RPM
Bore x Stroke 52.4 x 57.8 mm (2.1 x 2.3 inches)
Valves/Cylinder 2
Fuel System Carburettor. Keihin PB 18
Fuel Control Single Overhead Cams (SOHC)
Ignition CDI
Cooling Air
Transmission
Gearbox 4-speed
Final Drive Belt (final drive)
Chassis
Frame Type Mixed structure with chassis and tubes in steel.
Front Suspension Swing-arm, helical spring an hydraulic dampers double effect
Rear Suspension Engine as swing arm, helical spring an hydraulic dampers double effect
Wheelbase 1235 mm (48.6 inches)
Wheels & Brakes
Front Tyre 3.50-10
Rear Tyre 3.50-10
Front Brakes Single disc
Front Brake Ø 200 mm (7.9 inches)
Rear Brakes Expanding brake (drum brake)
Rear Brake Ø 150 mm (5.9 inches)
Wheels Modular pressed steel
Dimensions & Weight
Dry Weight 121.0 kg (266.8 pounds)
Power/Weight 0.0647 HP/kg
Overall Height 1110 mm (43.7 inches)
Overall Length 1760 mm (69.3 inches)
Overall Width 695 mm (27.4 inches)
Fuel Capacity 5.50 litres (1.45 US gallons)
Reserve Fuel 1.00 litres (0.26 US gallons)
Other
Starter Electric & kick
Notes

LML is an abbreviation of Lohia Machines Limited in India. Sold in Europe.

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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
City & Commuting
⚖️
Handling
Very lightweight — easy to handle
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