The B3 system can transport 3 items at once! The 2 outer slots are designed for boards with bindings such as kiteboards, wakeboards, or waterskis and 1 slot in the middle is for the thicker boards, such as wakeskates, wakesurfers, and certain kneeboards.
A quality, through-bolted, reinforced fishing rod holder must be used to support the weight of the B3 with boards. Your equipment is then secured using a bungee cord that is draped over the boards or skis. There is a designated notch for the bungee.
Please measure the angle of your rod holder to make sure you order the correct rack angle. A 15° rod mount will not work in a 30° rod holder.