Wheel spacers from Project KICS for 4x100 MX-5 Miatas (NA, NB & ND). The Project KICS Wide Tread Spacers Hub Unit System are a hub centric bolt-on wheel spacer that helps to widen the track width of the MX-5 Miata. Project KICS offers the spacer sets in multiple thicknesses and lug patterns. The thicknesses available are 11, 15, 20, 25, and 30mm. The aluminum construction is both strong and lightweight and retains the M12x1.5 thread pitch for the studs. Please note that it comes in 2 pieces per set. If you need 4 wheels, please order a quantity of 2. Learn More