public void setMaxSuspensionTravelCm(float maxSuspensionTravelCm) {
        this.maxSuspensionTravelCm = maxSuspensionTravelCm;
        applyInfo();
    }
the maximum distance the suspension can be compressed (centimetres)

@param maxSuspensionTravelCm the desired maximum amount the suspension
can be compressed or expanded, relative to its rest length (in hundredths
of a physics-space unit, default=500)
jme3-jbullet/src/main/java/com/jme3/bullet/objects/VehicleWheel.java