Originally Posted by
Caliper
It sounds like the segment is a loop? If so and there is no net elevation change, weight really doesn't matter. Yes, heavier can benefit in some places, but it hurts in others and this will tend to balance out on a loop.
It’s not an equal trade-off. You lose a lot more time on the climbs than you gain on the descents with more weight. So really depends how flat or hilly the loop is.
What you can say is that more bike weight definitely doesn’t make you quicker unless it is entirely downhill.