Engineered by Yamaha for the enduro - offroad motorcycle segment, the 2023 Yamaha TT-R125 relies on a 124 cc (7.6 cu in) air-cooled single cylinder, four-stroke powerplant. Internal engine geometry specifies a bore and stroke of 54.0 x 54.0 mm (2.1 x 2.1 inches) with a 10.0:1 compression ratio.
On the scales, the TT-R125 measures 90 kg (198 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 805 mm (31.7 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,270 mm (50 in) wheelbase engineered for quick, flickable steering geometry. The 6-liter (1.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Yamaha archive, this model family spans 7 indexed model years from 2004 to 2026, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
805 mm (31.7 in)
Engine
Displacement124.0 ccm (7.57 cubic inches)
Engine TypeSingle cylinder, four-stroke
Compression10.0:1
Bore x Stroke54.0 x 54.0 mm (2.1 x 2.1 inches)
Valves/Cylinder2
Fuel SystemCarburettor. Mikuni VM20/1
Fuel ControlSingle Overhead Cams (SOHC)
IgnitionCDI
LubricationWet sump
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet, Multiple Disc
DrivelineFuel system
Chassis
Frame TypeDiamond
Rake28.0°
Trail107 mm (4.2 inches)
Front SuspensionTelescopic fork
Front Travel180 mm (7.1 inches)
Rear SuspensionSwingarm, link suspension
Rear Travel168 mm (6.6 inches)
Wheelbase1270 mm (50.0 inches)
Wheels & Brakes
Front Tyre70/100-19
Rear Tyre90/100-16
Front BrakesSingle disc. Hydraulic.
Front Brake Ø220 mm (8.7 inches)
Rear BrakesExpanding brake (drum brake)
Rear Brake Ø110 mm (4.3 inches)
Dimensions & Weight
Weight incl.90.0 kg (198.4 pounds)
Seat Height805 mm (31.7 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.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
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.
