Load carrier

A roof rack load carrying bar comprising:

• a channel for receiving at least one mounting member for attaching a load carrying bar accessory to said load carrying bar, said channel extending at least partly in a length direction of said load carrying bar,
• a first cover and a second cover each disposed at least partially over an opening to said channel and extending in said length direction, wherein said first cover is disposed forward of said second cover relative to a travel direction of said load carrying bar during use, wherein said first cover has a first portion that abuts an outside edge of the load carrying bar forward of said channel and is disposed at least partially over a flange that defines a portion of said channel, wherein said first cover has a second portion disposed over said opening to said channel, and wherein said first portion of said first cover is disposed entirely forward of said second portion of said first cover;
• and
• an airflow regulating pattern comprising at least two raised rib portions on said first portion of said first cover offset from each other in said length direction,
• wherein each one of said at least two raised rib portions extends from a front of said first portion of said first cover to a rear of said first portion of said first cover,
• wherein two adjacent raised rib portions are separated by a separation distance in said length direction, and
• wherein each one of said at least two raised rib portions has a portion width measured in said length direction.