| Model | TM Racing MX 144 2T (TM Moto MX 144) |
| Year | 2027 |
| Category | Motocross |
| Engine Type | Single-cylinder, 2-stroke, reed-valve induction, electronically controlled exhaust power valve |
| Weight | 90 kg without fuel (2026 specification; 2027 figure not independently confirmed) |
| Displacement | 143.3 cc |
| Bore x Stroke | 56.0 x 58.2 mm |
| Compression Ratio | |
| Fuel System | Keihin PWK 38 mm carburettor | Replacement Options |
| Ignition | Kokusan electronic ignition; updated 2027 engine mapping |
| Spark Plug | NGK BR9EG (specified through 2026); NGK R7376-9 recommended by TM UK after running-in; confirm 2027 factory fitment |
| Spark Plug Gap | 0.7 mm (TM UK BR9EG service specification; verify if using an alternative plug) |
| Cooling System | Liquid-cooled |
| Starting System | Kick-start |
| Transmission | 6-speed manual gearbox |
| Clutch | Hydraulically operated, multi-plate wet clutch |
| Final Drive | Chain, 520 size |
| Overall Length | |
| Overall Width | |
| Overall Height | |
| Wheelbase | 1470 mm (previous published MX 144 specification; 2027 not independently confirmed) |
| Ground Clearance | 360 mm (previous published specification) |
| Seat Height | 990 mm (previous published specification) |
| Fuel Capacity | Approximately 9.0 litres; optional 12-litre tank |
| Frame | Aluminium Deltabox-type single-beam frame with extruded and forged components |
| Front Tyre | 80/100-21 (previous published MX 144 fitment; verify 2027 tyre specification) | Tyre Size Guide |
| Rear Tyre | 100/90-19 (previous published MX 144 fitment; verify 2027 tyre specification) | Tyre Size Guide |
| Front Suspension | 48 mm Kayaba (KYB) upside-down telescopic forks; updated 2027 suspension settings | Fork Oil Levels |
| Front Suspension Travel | 310 mm |
| Rear Suspension | TM Moto rear monoshock with progressive linkage; updated 2027 suspension settings |
| Rear Suspension Travel | 300 mm |
| Fork Oil | KYB 48 mm fork-specific suspension oil; exact 2027 oil grade and chamber quantities not independently confirmed |
| Front Brake | 270 mm hydraulic disc with Brembo caliper |
| Rear Brake | 240 mm hydraulic disc with Nissin caliper (2026 specification) |
| Front Wheel Size | 21-inch spoked wheel |
| Rear Wheel Size | 19-inch spoked wheel; 2.15-inch rim width listed in 2027 parts catalogue |
| Fuel Type | Premium unleaded petrol, minimum 97 RON recommended by TM UK |
| Premix Information | 33:1 manufacturer/importer guidance (approximately 30 ml oil per litre of petrol); TM UK recommends 40:1 (25 ml per litre) with suitable fully synthetic racing two-stroke oil | Premix Calculator |
| Gearbox Oil | 600 ml; Motorex Cross Power 4T 10W-40 or 10W-50 recommended by TM UK for 2026-onward two-stroke MX models with the newer clutch design |
| Air Filter | Washable, oiled foam air-filter element |
| Service Notes | 2027 model confirmed in TM Moto dealer listings and parts catalogues. The MX 144 retains the Keihin PWK 38 carburettor, kick-start system and six-speed gearbox. The 2027 range receives revised engine mapping, suspension settings, graphics, blue/white colours and improved wiring protection.
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