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.