TWO PACK - EVOLUTION X - Inflatable and hard paddleboard - extended axleEvolution X Paddle Board Bike Trailer (TWO UNIT PACKAGE) The Universal Heavy Duty Carrier for foam, hard, and inflatable boards The Evolution X is our most versatile and popular paddleboard carrier, engineered to take the struggle out of getting your gear to the water. While standard carriers often struggle with modern board dimensions, the "X" model features an extended axle and a flexible arch system designed to fit everything from slim performance