Comparison of TM Racing MX 250 F 2005 and TM Racing MX 450Fi [S]ave
| Attribute |  TM Racing MX 450Fi × |  TM Racing MX 250 F 2005 × |
|---|---|---|
| General | ||
| Production from (year) | 2016 | 2005 |
| Make | TM Racing | TM Racing |
| Model | TM Racing MX 450Fi | TM Racing MX 250 F |
| Category | Cross / motocross | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, four-stroke |
| Valves per cylinder | 4 | 4 |
| Fuel system | Injection. 44 mm throttle body | Carburettor. Mikuni TDMR 38 mm |
| Engine details | Titanium valves | - |
| Displacement (cm³) | 249.5 | 249.5 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 95 | 77 |
| Stroke (mm) | 63.4 | 53.6 |
| Gearbox | 6-speed | 5-speed |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) | Double Overhead Cams/Twin Cam (DOHC) |
| Driveline | Straight – tooth gear | - |
| Ignition | Microtec Electronic | Koukusan CDI electronic w/ variable advance |
| Clutch | Multiuple-disk in oil-bath with hydaulic control | Multiple-disk in oil-bath with hydraulic control |
| Lubrication system | Dry sump with 2 pumps | Dry sump with double rotor pump. |
| Chassis | ||
| Front suspension | Marzocchi USD 50 mm (optional Kayaba USD 48 mm) | Kayba/Paioli USD 48 mm |
| Rear suspension | TM Racing monoshock | Ohlins |
| Front brakes | Single disc. Wave disk with Nissin pump and caliper | Single disc |
| Rear brakes | Single disc. Wave disk with Nissin pump and caliper | Single disc |
| Diameter (mm) | 245 | 245 |
| Frame type | Alluminium perimetral | Cr-Mo steel. Perimetral oval section. |
| Front tyre | 80/100-21 | 90/90-21 |
| Rear tyre | 100/90-19 | 100/90-19 |
| Wheels | Wire spoked, blue rims | - |
| Other | ||
| Starter | Electric & kick | Kick |
| Color options |
| - |
| Performance | ||
| Fuel capacity (l) | 8.2 | 8 |
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