What is the maximum speed in first gear in kilometers?
2 Answers
Under normal circumstances, the maximum speed of a vehicle in first gear ranges from 15 to 40 kilometers per hour. The maximum speed in first gear depends on the tuning of the transmission and the engine's maximum RPM, so different vehicles will have varying top speeds in first gear. Speed ranges for each gear: Generally, 1st gear corresponds to 10-20 km/h; 2nd gear corresponds to 20-30 km/h; 3rd gear corresponds to 30-40 km/h; 4th gear corresponds to 40-50 km/h; and 5th gear corresponds to 50 km/h and above. Gear shifting precautions: Skipping gears while shifting is a common practice among many car owners, where they press the accelerator, increase RPM, and then forcefully shift gears by skipping a gear. This affects the lifespan of the transmission gears and also increases fuel consumption. Shifting into reverse gear before the car has come to a complete stop is another common mistake, not only among manual transmission drivers but also automatic transmission drivers. This can easily lead to transmission issues. Keeping the clutch in a semi-engaged state for a long time is frequently used in manual transmissions, and almost all drivers have made this mistake. Semi-engagement causes wear on the clutch plates, so it should be minimized. Coasting in neutral is something most drivers have done, often to save fuel. However, coasting in neutral poses certain safety risks. Looking down at the gear shift while changing gears is a habit many new drivers have after buying their first car. This is as dangerous as looking down at a phone while driving, so beginners should practice gear shifting more diligently.
When it comes to the top speed in first gear, based on my years of driving experience, I believe it entirely depends on your car model and engine size. For manual transmission vehicles, first gear is inherently designed for low-speed starts or climbing steep hills, so its maximum speed generally isn't very high. Taking the cars I've driven as examples, ordinary city cars like compact sedans can reach maybe 30-40 km/h at most when flooring the throttle in first gear. If you're driving an SUV or a more powerful car, it might go up to 40-50 km/h, but rarely exceeds that. The key point is that driving at high speeds in first gear is particularly harmful to the engine. Revving too high can cause cylinder overheating, significantly increase noise, and even damage components. Once, I forgot to shift up from first gear while driving a friend's old car on the highway, and the engine roared so loudly it was terrifying—nearly ended up in the repair shop. So, for everyday driving, I remind everyone to shift from first to second gear as soon as possible—it's safer and saves money. Regularly checking the manual for gear ratio details is also practical advice. Don't push small gears for speed, or you might end up spending a fortune on repairs.
