[JFP in PA]

When you lower a car simply by changing the spring rates, you also alter the suspension geometry and limit travel range, unless you also change the control arm and front spindles to units with altered geometry to regain the correct overall suspension geometry and travel. As such, the tires can wear appreciably more on the inner edge during normal driving. And the more you lower the car, the worse this becomes, and the faster the tires wear due to the tire going into negative camber when moving, even with the car properly aligned in a resting position.