| Attribute | Beta Eikon 4T 125 × | TM Racing MX 85 2017 × |
|---|---|---|
| General | ||
| Production from (year) | 2004 | 2017 |
| Make | Beta | TM Racing |
| Model | Beta Eikon 4T 125 | TM Racing MX 85 |
| Category | Scooter | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Single cylinder, two-stroke |
| Fuel system | - | Carburettor. Keihin 28mm |
| Engine details | - | V-Force Reed valve |
| Displacement (cm³) | 124.6 | 85 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | - | Chain |
| Bore (mm) | 52.4 | 48 |
| Stroke (mm) | 57.8 | 47 |
| Gearbox | 1-speed | 6-speed |
| Driveline | - | Straight – tooth gear |
| Ignition | - | Kokusan CDI Electronic with variable advance |
| Clutch | - | Multiple-disk in oil bath with hydraulic control |
| Lubrication system | - | 3,5% oil mix |
| Compression | - | 17.2:1 |
| Chassis | ||
| Front suspension | Hydraulic fork | Formula 39 |
| Rear suspension | Hydraulic shock absorber | Extreme tech |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Diameter (mm) | 190 | 190 |
| Frame type | Iron | Perimetral Aluminium Section |
| Front tyre | 120/70-13 | 70/100-17 |
| Rear tyre | 140/60-13 | 90/100-14 |
| Other | ||
| Starter | - | Kick |
| Color options |
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| Performance | ||
| Reserve fuel capacity (l) | 9.8 | - |
| Fuel capacity (l) | - | 6 |