These are the known mechanical and performance specifications for your 2020 TM Racing MX 300 Fi 4T.
Basic Specs

Engine
Displacement298.9 ccm (18.24 cubic inches)
TypeV-Force Reed valve
DetailsSingle cylinder, four-stroke
Max RPM
Compression
Bore/Stroke81.0 x 58.0 mm (3.2 x 2.3 inches)
Valves/Cylinder
FuelingInjection. Keihin PWM 38
IgnitionKokusan CDI Electronic with variable advance with two selectable maps through handlebar switch
Exhaust
LubricationDry sump with 2 pumps
CoolingLiquid
Drivetrain
Gearbox5-speed
Final Drive
ClutchMultiple-disk in oil bath with hydraulic control
DrivelineStraight – tooth gear
Fuel Economy & Polution
Fuel Consumption
Fuel Capacity7.50 litres (1.98 US gallons)
Emissions
Chassis
Frame TypePerimetral aluminium section
Rake
Trail
Front SuspensionKayaba USD 48mm
Front Travel
Rear SuspensionTM Racing
Rear Travel
Seat
Seat Height
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance
Wheelbase
Dry Weight
Wet Weight
Wheels & Brakes
Front Tire/Tyre80/100-X21
Rear Tire/Tyre100/80-X19
Front BrakesSingle disc. Wave disc.
Front Brake Diameter270 mm (10.6 inches)
Rear BrakesSingle disc. Wave disc.
Rear Brake Diameter245 mm (9.6 inches)
Wheels
Comments
Italian brand.