This hoverboard doesn't have any unlockable upgrades.
The Lowrider is a special kind of hoverboard that protects players from crashing for up to 30 seconds, and unlike most hoverboards, it always stays low (As the name suggests), dodging tallest barriers. When crashed, it will explode and will recharge for a few seconds before using again. It's the second most expensive hoverboard in the game, topped only by the Windglider. It has a unique design with two handles at the left and right sides of the board for the characters to hold on to.