The Honda 125 and 230 are both four-stroke engines, but the 230 has a larger displacement (229cc vs 124.7cc). This means that the 230 will generally produce more power and torque than the 125. However, the 125 is typically more fuel-efficient and lighter than the 230.
Ultimately, the best engine for you will depend on your individual needs and preferences. If you are looking for a powerful and versatile engine, the 230 is a great option. But if you are looking for a fuel-efficient and lightweight engine, the 125 is a better choice.
