The speed limit on a dual carriageway in the UK is the national speed limit, which is 70 mph (113 km/h) for cars and motorcycles, unless it is in a built-up area or a lower limit is posted. The speed limit for a car towing a trailer is 60 mph (97 km/h) . The speed limit for goods vehicles up to 7.5 tonnes is also 60 mph (97 km/h), while goods vehicles over 7.5 tonnes have a speed limit of 60 mph (97 km/h) in England and Wales and 50 mph (80 km/h) in Scotland and Northern Ireland. It is important to note that some dual carriageways may have a different speed limit posted, which will be well signed.