Need to move your wheels out for a little extra space This set of black hub - centric 1.25 - in. wheel spacers from Rugged Ridge has a 6 x139.7 mm bolt pattern and 93 mm center bore. The hub - centric construction ensures the wheel is precisely centered on the axle, minimizing stress on wheel studs, and eliminating the added road vibration common with non - hub - centric designs. Installing these spacers will help fit wider tires, giving your Jeep a wider track and improved stability. Constructed of double - anodized, extra - thick, 6061 - T6 aluminum for long life and extra corrosion resistance. All hardware is grade - 8 for extra strength.