One way to look at it is to draw an outline of the side view of the vehicle on a piece of graph paper and to make five copies. The first one will be the forces on the vehicle at 0 mph. It is the weight on the wheels. The force arrows from the gravitational attraction are straight down through the axle centers. Weigh the thing to figure that out.
Measure the frontal area and pick the centroid of that area as best as you can. The first analysis will be at 50 mph. Figure out the force from the air pushing on the front at that speed. This force, acting on the centroid, tends to roll the vehicle up and over itself. That does not happen. Force on the rear tire contact patch increases and it is counteracted by the salt being there. Downward force on the front contact patch decreases. There is also the tractive force vector at the bottom of the rear tire pushing the vehicle forwards. It equals the rolling friction and aero forces pushing against it. All of the forces should equalize each other. In other words, the upward forces should be the same as the downward, the forces on the front equalizing those on the back, etc.
Do the analysis at 100 mph, 150 mph, etc. There will be a speed at which there is no downward force on the front tire. Try the exercise with front wheel drive. See how fast the vehicle can go without the front tire lifting. Do everything with a smaller frontal or lower area.
This is a simplistic way of modeling things. It is a big help to figure out the critical relationships. A free body diagram it is.
This has been a big help. It told me to lower the center of pressure on the front, to lengthen the swingarm a bit, to add weight up front, not too far forward, but just enough. What I end up with is a bike that is front heavy while sitting still that has a decent weight distribution at speed. The target speed for me was 150 mph and I wanted no more than a 45% front and 55% rear distribution at that speed. I do not get that, the front end is lighter, but is handles much better than it would if I had not done the changes based on math.