17 minutes ago, cynanbloodbane said:1 Repulsorlifts derive their power from the gravity well they are in. That's why land speeders function the same on every planet regardless of the gravity of each planet.
2 As long as the Repulsorlifts are active, no other power is needed to keep it "hovering".
3 Mass, that is still several hundred pounds of weight, but I have seen evidence that going from park to moving on a speeder is at least a 2 step process. The first is probably releasing the gravity brake, that holds its position in the gravity well.
This appears to make the most sense. Essentially, the speeder is in geostatic orbit, quite a low orbit, but something is keeping it fixed to a location. A gravity brake, or some other mechanism, would prevent the ground from moving beneath it as the planet rotates if it were not fixed to the ground beneath it.