Which of the following is NOT one of the four types of Rider Input?

The concept of Rider Input in cycling refers to the various ways a cyclist can control their bike's movement and trajectory through physical actions. The four primary types of Rider Input are pedal pressure, steering, braking, and balance. Pedal pressure refers to how hard the rider pushes down on the pedals to generate power and speed. Steering involves the control of the handlebars to change direction. Braking is the action taken to slow down or stop the bicycle.

Acceleration, while an important aspect of cycling, isn’t categorized as a type of Rider Input on its own. Instead, it is often the result of the combined effects of pedal pressure and gearing. When cyclists exert pedal pressure effectively, they can accelerate; however, acceleration is not a direct input in the same way that the other three actions are.

Therefore, identifying acceleration as not being in the direct category of Rider Input aligns with the understanding of how cyclists engage with their bicycles to influence movement, making it the correct answer in this context.