| Model | RB20-AS |
| Starting System | Recoil Starter |
| Bore x Stroke (mm) | 67 x 52 |
| Displacement (cc) | 183 |
| Engine Speed (rpm) | 4000 |
| Max. Output (hp) | 5.0 |
| Continuous Output (hp) | 3.5 |
| Lube Oil Capacity (L) | 0.6 |
| Fuel Tank Capacity (L) | 3.8 |
| Dimension (H x W x L) (mm) | 380 x 370 x 425 |
| Net Weight (kg) | 15 |
