A measure of vehicle under-belly clearance or the ability to drive over a sharp ridge or ramp without touching the underside of the vehicle on the obstacle. The ramp angle is the angle measured from the lowest part of the chassis at mid-wheelbase down to the periphery of front and rear wheels. Obviously a short wheelbase vehicle with large wheels will have the smallest ramp angle and best under-belly clearance; a Defender 90 will be better than a Defender 130 in this respect.
The greatest angle at which a vehicle can move across an incline while allowing clearance of all chassis components.
The greatest angle at which a vehicle an approach or depart on an incline while allowing clearance of all chassis components.
Angle created by lines tangent to the static loaded radii of front and rear wheels, converging at the point of lowest ground interference of underside of car - angle of overhang at lower extremities.
Clearance angle from the wheels needed to prevent the risk of grounding the car underside.