KG 20 Series
| Model | Ratio | 1/22 | 1/50 | 1/78 |
| 3.5V | Rated torque (Kg-cm) | 0.3 | 0.7 | 1.0 |
| Rated speed (rpm) | 500 | 220 | 141 | |
| 3.5V | Rated torque (Kg-cm) | 0.3 | 0.7 | 1.0 |
| Rated speed (rpm) | 255 | 112 | 72 | |
| Weight (g) | 55 | 55 | 55 | |
| Rated volt (V) | Rated torque (rpm) | Rated speed (rpm) | Rated current (mA) | No load speed (rpm) | No load current (mA) | Rated output (W) |
| 3.0V | 20 | 11,000 | 750 | 12,000 | ≤260 | 2.3 |
| 4.0V | 20 | 5,600 | 220 | 6,800 | ≤80 | 1.2 |