Positioned in Yamaha's allround motorcycle lineup, the 2001 Yamaha TW 125 utilizes a 125 cc (7.6 cu in) single cylinder, four-stroke layout. In factory specification, peak output is rated at 12 HP (8.8 kW) at 9,000 rpm while maximum torque reaches 9.7 Nm (7.2 lb-ft) at 8,000 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 96 HP per liter and a 1,000 rpm working window between peak torque (8,000 rpm) and peak power (9,000 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the TW 125 measures 118 kg (260 lbs) dry, translating to a power-to-weight ratio of 0.1 HP/kg (9.83 kg per horsepower). Rider ergonomics and chassis geometry center around a 815 mm (32.1 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,330 mm (52.4 in) wheelbase engineered for quick, flickable steering geometry. The 7-liter (1.8 US gal) fuel tank supports practical everyday commuting and weekend road stints, while factory top speed is listed at 102 km/h (63 mph).
Within MotoLibrary's Yamaha archive, this model family spans 5 indexed model years from 2000 to 2004, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
96 HP/L
Power-to-Weight
0.1 HP/kg (9.83 kg/HP)
Power Band Window
8,000–9,000 rpm
Standover Height
815 mm (32.1 in)
Engine
Displacement125.0 ccm (7.63 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power12.0 HP (8.8 kW)) @ 9000 RPM
Torque9.7 Nm (1.0 kgf-m or 7.2 ft.lbs) @ 8000 RPM
Bore x Stroke57.0 x 48.4 mm (2.2 x 1.9 inches)
Valves/Cylinder2
Fuel SystemCarburettor
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Performance
Top Speed102.0 km/h (63.4 mph)
Chassis
Front Travel160 mm (6.3 inches)
Rear Travel150 mm (5.9 inches)
Wheelbase1330 mm (52.4 inches)
Wheels & Brakes
Front Tyre130/80-18
Rear Tyre180/80-14
Front BrakesSingle disc
Front Brake Ø220 mm (8.7 inches)
Rear BrakesExpanding brake
Rear Brake Ø110 mm (4.3 inches)
Dimensions & Weight
Dry Weight118.0 kg (260.1 pounds)
Power/Weight0.1017 HP/kg
Seat Height815 mm (32.1 inches) If adjustable, lowest setting.
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.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
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.
