The present invention relates to a sorting system including a conveyor comprising a plurality of carts for carrying articles, in particular for sorting articles such as parcels and baggage. The conveyor has a linear synchronous motor drive system with stators arranged along a track which the carts follow. Reaction elements are mounted on each of the carts. The reaction elements each comprise an even or an uneven number of permanent magnets arranged on a plate-like carrier. The magnets on reaction elements of adjacent carts are arranged to form arrow of magnets with alternating polarity, said row having two neighboring magnets. At least one of the two neighboring magnets has a reduced dimension in the transport direction, and the two neighboring magnets are situated at a transition between adjacent carts.