At the heart of the 2020 TM Racing MX 85 Junior 2T cross - motocross motorcycle, TM Racing features a 80 cc (4.9 cu in) liquid-cooled single cylinder, two-stroke configuration. Internal engine geometry specifies a bore and stroke of 46.5 x 47.0 mm (1.8 x 1.9 inches).
The 6-liter (1.6 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's TM Racing archive, this model family spans 2 indexed model years from 2020 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Engine
Displacement80.0 ccm (4.88 cubic inches)
Engine TypeSingle cylinder, two-stroke
Engine DetailsReed valve
Bore x Stroke46.5 x 47.0 mm (1.8 x 1.9 inches)
Fuel SystemCarburettor. Keihin 28
IgnitionKokusan CDI Electronic with variable advance
Lubrication3.5% oil mixture
CoolingLiquid
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchMultiple-disk in oil bath with hydraulic control
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.
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.
