4 TYPES OF RESISTANCE
ROLLING RESISTANCE
The tires and wheels are rolling. Comes in 2 levels- hard surface , or soft surface.
DAMAGE RESISTANCE
Its not going to roll. The object has no wheels.
MIRE RESISTANCE
it’s stuck in the mud, snow, sand, or soft grass. Comes in 3 different levels.
GRADIENT RESISTANCE
When the object is pulled up or down a grade. Gradient resistance has many different levels as it depends upon the degree of the grade.