Final answer:
Shift into the downhill gear before starting the descent to ensure safe and controlled travel.
Explanation:
When choosing a gear for downhill travel, shift into that gear...
It is essential to shift before you begin your descent to ensure a smooth and controlled journey downhill. By anticipating the terrain and adjusting gears preemptively, you can maintain a safe speed and avoid sudden changes that could be risky.
For example, shifting to a lower gear before starting the descent allows for better control of speed and helps prevent the need for abrupt gear changes during the downhill journey.
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