| Attribute | Tomos BT 1990 × | BMW C Evolution 2013 × |
|---|---|---|
| General | ||
| Production from (year) | 1990 | 2013 |
| Make | Tomos | BMW |
| Model | Tomos BT | BMW C Evolution |
| Category | Allround | Prototype / concept model |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Electric |
| Fuel system | Carburettor | - |
| Displacement (cm³) | 50 | - |
| Power (kw) | 4.4 | 34.3 |
| Cooling system | Air | Air |
| Transmission type,final drive | Chain | - |
| Bore (mm) | 38 | - |
| Stroke (mm) | 0 | - |
| Gearbox | 5-speed | - |
| Driveline | - | single-sided drivetrain swingarm |
| Chassis | ||
| Front suspension | - | 40mm upside-down fork |
| Rear suspension | - | Dual shocks |
| Front brakes | - | Double disc. dual-piston floating caliper twin brake disc. ABS. |
| Rear brakes | Expanding brake (drum brake) | Single disc. ABS. |
| Diameter (mm) | 220 | 270 |
| Other | ||
| Starter | Kick | Electric |
| Color options | - |
|
| Dimensions | ||
| Dry weight (kg) | 70 | - |
| Power/weight ratio | 0.0629 | - |
| Performance | ||
| Top speed (km/h) | 90 | 120 |
| Fuel capacity (l) | 9 | - |