2002 Yamaha DT 125 R Technical Analysis & Specification Breakdown
Built around Yamaha's enduro - offroad motorcycle platform, the 2002 Yamaha DT 125 R relies on a 124 cc (7.6 cu in) air-cooled single cylinder, two-stroke powerplant. In factory specification, peak output is rated at 14.1 HP (10.3 kW) at 7,000 rpm while maximum torque reaches 14.2 Nm (10.5 lb-ft) at 7,000 rpm. With a specific output of 113.7 HP per liter, 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 DT 125 R measures 116 kg (256 lbs) dry, translating to a power-to-weight ratio of 0.12 HP/kg (8.23 kg per horsepower). Rider ergonomics and chassis geometry center around a 885 mm (34.8 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,415 mm (55.7 in) wheelbase engineered for quick, flickable steering geometry.
Within MotoLibrary's Yamaha archive, this model family spans 6 indexed model years from 1991 to 2002, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
113.7 HP/L
Power-to-Weight
0.12 HP/kg (8.23 kg/HP)
Standover Height
885 mm (34.8 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power14.1 HP (10.3 kW)) @ 7000 RPM
Torque14.2 Nm (1.4 kgf-m or 10.5 ft.lbs) @ 7000 RPM
Compression6.7:1
Bore x Stroke56.0 x 50.7 mm (2.2 x 2.0 inches)
CoolingAir
Chassis
Front Travel270 mm (10.6 inches)
Rear Travel260 mm (10.2 inches)
Wheelbase1415 mm (55.7 inches)
Ground Clearance315 mm (12.4 inches)
Wheels & Brakes
Front BrakesSingle disc
Front Brake Ø230 mm (9.1 inches)
Rear BrakesSingle disc
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Dry Weight116.0 kg (255.7 pounds)
Power/Weight0.1216 HP/kg
Seat Height885 mm (34.8 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.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
