Due to their high weight capacity, these racks can be used for a lot more than kayaks. Along with kayaks, they can be used for other types of sport equipment, such as canoes and surfboards. You would also be able to attach bikes to them as well. There are plenty of non-recreational uses for these racks. They are ideal for carrying ladders, timber, and other building materials. With a weight capacity of up to 800lbs, the possibilities are endless, which helps to give these racks brilliant versatility. If you just wanted to use them for kayaks, then they are perfect for that too.