| MODEL | TM RACING MX 300 2019 |
| Year | 2019 |
| Engine Type | Single cylinder, two-stroke, V-Force reed valve |
| Displacement / Capacity | 295.0 cc / 18.00 cu in |
| Bore X Stroke | 72.0 x 72.0 mm / 2.8 x 2.8 in |
| Compression Ratio | — |
| Cooling System | Liquid |
| Max Power | — |
| Max Torque | — |
| Ignition | Kokusan CDI electronic with variable advance, two selectable maps via handlebar switch |
| Induction | Keihin PWM 38 carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | 3.5% oil mix |
| Gear Box | 5-speed |
| Clutch | Multiple-disc, oil bath, hydraulic control |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Perimetral aluminium section |
| Front Suspension | Kayaba USD |
| Rear Suspension | TM Racing |
| Front Brakes | Single disc, 270 mm / 10.6 in; wave disc |
| Rear Brakes | Single disc, 245 mm / 9.6 in; wave disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 80/100-21 |
| Rear Tyre | 110/90-19 |
| FUEL SYSTEM | |
| Fuel Capacity | 9.50 Litres / 2.51 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 2019 MX 300 is TM's big two-stroke motocrosser, using a reed-valve 72 x 72 mm engine with a two-map CDI switchable from the handlebar. Kayaba forks, an aluminium perimeter frame and a 9.5 litre tank set it apart from earlier years.
