DSB has chosen to purchase complete air spring systems for the DD fleet consisting of 184 Bogies. In total, DSB needs to procure 368 Complete air spring systems; 196 pcs. for DD1-2 Bogies and 172 pcs. for DD3 bogies. Originally DD1-DD2 have Phoenix SEK 680-10 secondary spring systems installed and DD3 has Phoenix SEK 680-11 installed. DSB is tendering for one supplier that can deliver original “or equivalent” Air Spring Systems.