42 Draft Designs Audi/Mercedes 5x112 Wheel & Hubcentric Wheel Spacers (8mm) Our wheel spacers were designed to be as light as structurally possible  a design feature that our machines are glad to provide. Based on the size and location of the pads of the wheel, we design and machine pockets that remove unnecessary material from the negative space. This feature significantly lightens each spacer reducing rotating mass. 5mm spacers are 17% lighter, while 25mm spacers are 31% lighter than the same spacer without the pockets. Hubcentric fitment is a standard feature of our wheel spacers. Hubcentric wheel spacers are machined to fit tight around the factory hub. This fitment keeps the spacer spinning concentric to the center of the axle, eliminating the chance of vibrations caused by the spacer. When the thickness of your spacer exceeds the length of the OEM hub it becomes nearly impossible to properly center the wheel. Our wheelcentric spacers fix this problem by extending the OEM hub. Starting with our standard hubcentric fitment we design and machine a hub extension into the face of the spacer. This extension differs by spacer thickness, taking advantage of all available space outside the OEM hub.