The skeleton itself is manufactured in two sizes, 36-42.5 and 43-49. With a simple system, the skeleton can be set to your desired size in seconds. The skates are provided in three places when thrown. xml: namespace prefix = "o" ns = "urn: schemas-microsoft-com: office: office" /> 3 screws. The Trinity mounting system is a new gripping method that allows the wheels to get closer to the shoe, reducing center of gravity, increasing stability, more damping driving vibration, better transmitting power to reflection, and providing more control during skating. The model drives wheels V-Mart air tire 150mm. They provide a comfortable ride, absorb most of the impact. These wheels have a wide profile and smoothly ride on uneven surfaces. Powerslide XC Skeleton skates feature Wicked Rustproof bearings. They are stainless metal bearings that are designed for rain. Due to its positioning, the Universal Cuff Brake can be set by each skater to match each other for maximum control.