Rock Island G2 15-25 vs Wetmore 12-25
Side-by-side specs comparison
Verdict by the numbers
- The Rock Island G2 15-25 and the Wetmore 12-25 deliver the same power: 27 HP.
- The Rock Island G2 15-25 is the more recent model: production started in 1929, versus 1919 for the Wetmore 12-25.
- The Rock Island G2 15-25 is heavier: 1905 kg versus 1315 kg for the Wetmore 12-25.
Full specs comparison
| Rock Island G2 15-25 | Wetmore 12-25 | |
|---|---|---|
| Power | 27 HP | 27 HP |
| Production years | 1929–1932 | 1919–1938 |
| Fuel | Kerosene | Kerosene |
| Cylinders | 4 | 4 |
| Displacement | 5.3 L | 4.7 L |
| Weight | 1 905 kg | 1 315 kg |
| Drive | 2WD | 2WD |
| Transmission | Synchronized | Gear |
| Gears (fwd/rev) | 2 / 1 | 3 / 1 |
| Wheelbase | — | 187 cm |
Frequently asked questions
Which is more powerful, the Rock Island G2 15-25 or the Wetmore 12-25?
The Rock Island G2 15-25 and the Wetmore 12-25 deliver the same power: 27 HP.
Which is more recent, the Rock Island G2 15-25 or the Wetmore 12-25?
The Rock Island G2 15-25 is the more recent model: production started in 1929, versus 1919 for the Wetmore 12-25.
Which is heavier, the Rock Island G2 15-25 or the Wetmore 12-25?
The Rock Island G2 15-25 is heavier: 1905 kg versus 1315 kg for the Wetmore 12-25.

