Built around Yamaha's enduro - offroad motorcycle platform, the 2007 Yamaha TT-R 125 pairs a 123.7 cc (7.6 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 9.7 HP (7 kW) at 8,000 rpm while maximum torque reaches 9.9 Nm (7.3 lb-ft), transferring power to the rear wheel through a 3-speed gearbox and chain final drive. With a specific output of 78.4 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the TT-R 125 measures 77 kg (170 lbs) dry, translating to a power-to-weight ratio of 0.13 HP/kg (7.94 kg per horsepower). Rider ergonomics and chassis geometry center around a 775 mm (30.5 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance. The 6.6-liter (1.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Yamaha archive, this model family spans 3 indexed model years from 2002 to 2007, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
78.4 HP/L
Power-to-Weight
0.13 HP/kg (7.94 kg/HP)
Standover Height
775 mm (30.5 in)
Engine
Displacement123.7 ccm (7.55 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power9.7 HP (7.0 kW)) @ 8000 RPM
Torque9.9 Nm (1.0 kgf-m or 7.3 ft.lbs)
Compression10.0:1
Bore x Stroke54.0 x 54.0 mm (2.1 x 2.1 inches)
Fuel SystemCarburettor. Mikuni VM20/1
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionCDI
LubricationWet sump
CoolingAir
Transmission
Gearbox3-speed
Final DriveChain (final drive)
ClutchWet, multiple-disc coil spring
Chassis
Frame TypeDiamond shaped
Front SuspensionTelescopic fork
Front Travel180 mm (7.1 inches)
Rear SuspensionSwingarm (link suspension)
Rear Travel95 mm (3.7 inches)
Wheels & Brakes
Front Tyre70/100-M17
Rear Tyre90/100-M14
Front BrakesExpanding brake (drum brake)
Front Brake Ø110 mm (4.3 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø110 mm (4.3 inches)
Dimensions & Weight
Dry Weight77.0 kg (169.8 pounds)
Power/Weight0.1253 HP/kg
Seat Height775 mm (30.5 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.
