The Matter Lethal F2, indoor skate wheel is Matter's most-won-on indoor racing wheel. By taking the previous models, such as the Lethal 2, core and technology and pushing each component to the next level, Matter has evolved the quality of these wheels in multiple aspects. The Lethal F2, white hub wheel, has higher grade hub material, completely new mixes of polyurethane chemistry, and balancing the perfection of hardness and consistency. This wheel is sold as 100mm, 110mm, or 125mm.