The Differential is a torque controlled diff. It is possible to preload the system. Advantages of the Powerlock Differential: maximum traction for all griplevels (adjustable), reduction of fuel consumption, huge reduction of tyre wear, easy to drive, constant to drive, reduction of midcorner understeer. Weight from 2014 onward: 364g incl. ball diff axles and main gear 48" (example 364g für GENIUS cars). Attention: ball diff axles and main gear 48" are included in the set.