The sponsor of the Cyclassics , was the Hamburg ElectrizitÃ t Werke , Hamburg electricity plant or `` HEW '' , after it became part of the big `` Vattenfall '' company the Cyclassic changed its name too , and from 2006 this cycling race has been known as the Vattenfall Cyclassics . The sponsor of the Cyclassics , the Hamburg electricity plant HEW , has adopted a new name ( Vattenfall Europe Hamburg ) , and since 2006 , this cycling race has been known as the Vattenfall Cyclassics .