I’m not talking about long uphill and downhill, but more like little “bumps” that you find on any street. like getting on the sidewalk and then getting off to the road again would need me to pedal more vs when I just ride along a flat road on my bicycle. Why. If I come back to the same level of height eventually, the downhill should accelerate my bike as much as the uphill decelerate it, right?
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Bumps don’t make the wheel any harder to turn, they make the momentum gained by one turn of the wheel (so to speak) dissipate faster, so you need to put in more wheel turns to get the same distance as if it were flat
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