the effective doesn't change that is on Wheeled carriers or tracked carriers, but instead, that's is limit of the carrier taht change and dramatically. On the tracked carriers, that can really go anywhere, you don't have a risk to stay blocked in soft mud or sand, well, at least, as not easily as a wheeled, the wheeled vehicule also got the disadvantage to got tires. Tires are very vulnerable to damage from gunfire, battlefield debris, and sharp rocks. In the 30 January 1991 battle for Khafji, the first coalition attack was stopped when Iraqi small arms fire flattened the tires of the Saudi wheeled armor. Four weeks later, the Marine assault on Kuwait Airport was also brought to a halt when the tires of several LAV-25s were shredded as a result of running over artillery fragments.More recently, the Stryker company (13 or 14 Vehicules) that participated in Millennium Challenge 2002 had to replace 13 tires during the 96-hour NTC rotation! How many more tires would have required replacement if the OPFOR had been shooting bullets instead of MILES lasers? "Run-flat" tires are not a solution - if you have to limp into a fight, you might not be able to crawl out! Tracks don't have to be changed after every battle.
Also, wheeled vehicles require the use of snow chains in order to operate effectively in snow. This is another group of items for which stowage space is required, and the time needed for installation and removal of snow chains can potentially slow the pace of winter operations.Tracked vehicles can easily climb over automobiles and other obstacles that cannot be surmounted by wheeled armor. This capability is very useful in any scenario, and its lack can result in mission failure.The only advantage of a wheeled vehicule is the maintenance, more easy and less costy.
