2007 Yamaha DT 125 X Technical Analysis & Specification Breakdown
At the heart of the 2007 Yamaha DT 125 X super motard motorcycle, Yamaha relies on a 124 cc (7.6 cu in) liquid-cooled single cylinder, two-stroke powerplant. In factory specification, peak output is rated at 14.8 HP (10.8 kW) at 8,000 rpm while maximum torque reaches 13 Nm (9.6 lb-ft) at 8,000 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 119.4 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 X measures 122 kg (269 lbs) dry, translating to a power-to-weight ratio of 0.12 HP/kg (8.24 kg per horsepower). Rider ergonomics and chassis geometry center around a 886 mm (34.9 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,269 mm (50 in) wheelbase engineered for quick, flickable steering geometry. The 10.7-liter (2.8 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Yamaha archive, this model family spans 2 indexed model years from 2006 to 2007, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
119.4 HP/L
Power-to-Weight
0.12 HP/kg (8.24 kg/HP)
Standover Height
886 mm (34.9 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsSingle cylinder, two-stroke
Power14.8 HP (10.8 kW)) @ 8000 RPM
Torque13.0 Nm (1.3 kgf-m or 9.6 ft.lbs) @ 8000 RPM
Compression6.7:1
Bore x Stroke56.0 x 50.7 mm (2.2 x 2.0 inches)
Fuel SystemCarburettor. Mikuni TM28-92
IgnitionCDI
LubricationAutolube (Separate lubrication)
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
Chassis
Frame TypeFront suspension system:
Front SuspensionHydraulic telescopic fork
Front Travel120 mm (4.7 inches)
Rear SuspensionMonocross (Link type)
Rear Travel200 mm (7.9 inches)
Wheelbase1269 mm (50.0 inches)
Ground Clearance271 mm (10.7 inches)
Wheels & Brakes
Front Tyre120/70-H17
Rear Tyre140/70-H17
Front BrakesSingle disc
Front Brake Ø298 mm (11.7 inches)
Rear BrakesSingle disc
Rear Brake Ø230 mm (9.1 inches)
Dimensions & Weight
Dry Weight122.0 kg (269.0 pounds)
Power/Weight0.1209 HP/kg
Seat Height886 mm (34.9 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.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
