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Sport · 2005

RX 125

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MotoLibrary Score
34 /100 Commuter
Power/Weight
0.09 hp/kg
Torque
8 Nm
Engine
124 ccm

2005 Linhai RX 125 Technical Analysis & Specification Breakdown

At the heart of the 2005 Linhai RX 125 sport motorcycle, Linhai features a 124 cc (7.6 cu in) air-cooled single cylinder, two-stroke configuration. In factory specification, peak output is rated at 10.1 HP (7.3 kW) at 9,500 rpm while maximum torque reaches 7.6 Nm (5.6 lb-ft) at 7,500 rpm, transferring power to the rear wheel through a automatic gearbox and chain final drive. With a specific output of 81.5 HP per liter and a 2,000 rpm working window between peak torque (7,500 rpm) and peak power (9,500 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 RX 125 measures 110 kg (243 lbs) dry, translating to a power-to-weight ratio of 0.09 HP/kg (10.89 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 2.1-liter (0.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.

Specific Output
81.5 HP/L
Power-to-Weight
0.09 HP/kg (10.89 kg/HP)
Power Band Window
7,500–9,500 rpm
Engine
Displacement 124.0 ccm (7.57 cubic inches)
Engine Type Single cylinder, two-stroke
Engine Details Single cylinder, two-stroke
Power 10.1 HP (7.3 kW)) @ 9500 RPM
Torque 7.6 Nm (0.8 kgf-m or 5.6 ft.lbs) @ 7500 RPM
Compression 9.2:1
Bore x Stroke 56.0 x 49.5 mm (2.2 x 1.9 inches)
Ignition C.D.I.
Cooling Air
Transmission
Gearbox Automatic
Final Drive Chain (final drive)
Chassis
Wheelbase 1250 mm (49.2 inches)
Wheels & Brakes
Front Brakes Expanding brake (drum brake)
Rear Brakes Expanding brake (drum brake)
Dimensions & Weight
Dry Weight 110.0 kg (242.5 pounds)
Power/Weight 0.0914 HP/kg
Overall Length 1920 mm (75.6 inches)
Overall Width 760 mm (29.9 inches)
Fuel Capacity 2.10 litres (0.55 US gallons)
Other
Starter Electric & kick
More from Linhai
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.
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
Sport & Track
⚖️
Handling
Very lightweight — easy to handle
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