Positioned in TM Racing's cross - motocross motorcycle lineup, the 2025 TM Racing MX 125 2T relies on a 124.8 cc (7.6 cu in) liquid-cooled single cylinder, two-stroke powerplant. Internal engine geometry specifies a bore and stroke of 54.0 x 54.5 mm (2.1 x 2.1 inches).
On the scales, the MX 125 2T measures 90 kg (198 lbs) dry. Rider ergonomics and chassis geometry center around a 990 mm (39 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control. The 9-liter (2.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's TM Racing archive, this model family spans 4 indexed model years from 2020 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
990 mm (39 in)
Engine
Displacement124.8 ccm (7.62 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsV-Force Reed valve
Bore x Stroke54.0 x 54.5 mm (2.1 x 2.1 inches)
Fuel SystemCarburettor. Keihin PWK 38
IgnitioneMoticom ECU
Lubrication3,5% oil mix
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchMultiple-disk in oil bath with hydraulic control
DrivelineRegina GPX chain
Chassis
Frame TypeSelf-tempering aluminium deltabox type single beam with extruded, forged and microcast parts
Front SuspensionKayaba fork, 48mm
Front Travel310 mm (12.2 inches)
Rear SuspensionTM Racing monoshock
Rear Travel300 mm (11.8 inches)
Ground Clearance360 mm (14.2 inches)
Wheels & Brakes
Front Tyre80/100-21
Rear Tyre100/90-19
Front BrakesSingle disc. Brembo
Front Brake Ø270 mm (10.6 inches)
Rear BrakesSingle disc. Nissin
Rear Brake Ø240 mm (9.4 inches)
Dimensions & Weight
Dry Weight90.0 kg (198.4 pounds)
Seat Height990 mm (39.0 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.
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.
