3.1.- What is the advantage of being able to adjust front suspension?

There are bikes with a very soft front suspension as original equipment.
It means that when pilot rides on, depending on its weight, can have a considerable sag, even in static condition. Under this condition, front suspension sag in normal running is big, both off as well as on road.
With HFS system, front static sag is adjustable by applying more or less pressure to the gas spring. Therefore, you will be reserving more effective travel to your suspension and you’ll get benefits in braking, bottoming, etc.