Denmark has three general speed limits: 50 km/h within towns 80 km/h outside towns 130 km/h on motorways
The general speed limits for driving with trailers are: 50 km/h within towns 80 km/h outside towns 80 km/h on motorways
Some areas may have lower or higher speed limits. Also the general speed limits apply only for vehicles below 3.5 metric tons. Lower speed limits apply for larger vehicles.
References
Bekendtgørelse af færdselsloven (Danish)