This hoverboard doesn't have any unlockable upgrades.
Wave Rider is the thirtieth limited hoverboard in Subway Surfers. Like any other hoverboard, it protects you from crashing for 30 seconds. When crashed, it needs to recharge for a few seconds before it can be used again. It has the appearance of a blue and white surfboard with a wavy pattern. The board is a limited edition hoverboard, exclusive to the Subway Surfers World Tour: Sydney 2015. Like most of othes limited hoverboards, Wave Rider costs 50,000.