| MODEL | TM RACING MX 125 2T 2020 |
| Year | 2020 |
| Engine Type | Single cylinder, two-stroke |
| Displacement / Capacity | 123.5 cc |
| Bore X Stroke | 54.0 x 54.5 mm |
| Compression Ratio | — |
| Cooling System | Liquid |
| Max Power | 11.0 kW / 15 hp |
| Max Torque | — |
| Ignition | Kokusan CDI, variable advance, two selectable maps via handlebar switch |
| Induction | 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 48 mm USD fork, 310 mm travel |
| Rear Suspension | TM Racing, 300 mm travel |
| Front Brakes | Single wave disc, 270 mm / 10.6 in |
| Rear Brakes | Single wave disc |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 990 mm / 39.0 in |
| Wheelbase | — |
| Ground Clearance | 370 mm / 14.6 in |
| Dry Weight | 96 kg / 211.6 lb |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 80/100-21 |
| Rear Tyre | 100/90-19 |
| FUEL SYSTEM | |
| Fuel Capacity | 9.5 Litres / 2.51 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 2020 125 two-stroke is a carburetted, kick-started motocross bike with a five-speed box, wave brake discs at each end and a larger 9.5 litre tank than later years.
