In general, a higher gear ratio is not better for acceleration. A higher gear ratio means that the output gear (driven gear) is turning at a higher speed relative to the input gear (driving gear). This can provide a higher top speed but may sacrifice acceleration.
For vehicles, such as cars or bicycles, a lower gear ratio (larger input gear to smaller output gear) provides more torque or rotational force at the expense of speed. This lower gear allows the engine or rider to apply more force to the wheels, resulting in faster acceleration from a stationary position or at low speeds.
Conversely, a higher gear ratio (smaller input gear to larger output gear) provides higher speed at the expense of torque. This higher gear allows the engine or rider to maintain higher speeds with less effort, but it can lead to slower acceleration due to reduced torque.
However, it's important to note that the ideal gear ratio for acceleration depends on various factors, such as the vehicle's power characteristics, weight, and intended use. Different vehicles, engines, and scenarios may require different gear ratios to optimize acceleration performance.