Mounting reinforced coil or leaf springs is a non-adjustable solution for suspension problems. An additional spring leaf is mounted to the existing coil or leaf spring(s). Reinforced springs wil usually ensure that the vehicle returns to its orginal ride height ( if not higher), thus increasing the suspension travel and improving stability. This adjustment will however make the suspension more rigid ( harder) and therefore reduces the ride comfort. This solution is often used for vehicles that are constantly heavily laden.