Fin configuration: One aluminum Shank fin on each end. Lock included. The Catalyst 2.0 is a more traditional skate style concave kicktail blend. The magic weight of our high-end skates is around eight pounds, but it’s where the weight is dispersed that makes the big difference. The 2.0 is constructed with steel rods running the length of the board, which improve the rotation on flip tricks. A softer radius near the edge prevents the board from getting hung up in the water when a deck is most prone to – during shuv-it tricks.