Because of an efficient use of materials, the 6" Meritor MTec6 trailer axle is 36 lbs lighter than the industry-standard 5" axle, according to the company. The lighter axle reduces gross trailer weight to enhance fuel economy and available payload. The stiffness of the Mtec6 reduces axle deflection to maintain neutral camber and helps reduce tire wear. The MTec6 will be available later in 2015.