17x8 or 18x9 Mustang Chrome Bullitt Rims Ford Mustang Bullit style one-piece cast aluminum wheels, triple-chrome plated. Triple-chrome plating process consists of copper, nickel and chrome for best cosmetic results and durability. Wheel requires very little maintenance other than soap and water. This is a very high quality low-pressure cast aluminum wheel made to meet OEM specs. The wheel is made of premium A356 aluminum alloy and is heat treated for strenght. Includes center cap (center cap may be different than the example shown here - our wheel manufacturers offer 2 or 3 different style caps for these wheels). D.O.T. approved. Wheel size : 17x8" or 18x9" Wheel weight : 26 Lbs Load rating : 1400 Lbs Hub bore size : 2.785" Available lug-patterns : 5x4.50" (5x114.3mm) 5x4.25" (5x108mm) This wheel size and finish is offered in the following offsets / backspacing : +24mm offset (5.44" backspacing) - fits Mustang 1994-2004 with 5x4.50" (5x114.3mm) lug-pattern. It also fits Mustang 1979-1993 that have been converted to 5-lug. +0mm offset (4.50" backspacing) 5.4.50" lug-pattern: Fits Ford Mustang 8-cylinder (5-lug) 1965-1973 +32mm offset (5.76" backspacing) - available in 5x4.50" lug-pattern to fit some custom Mustang / Cobra Kit applications and also available in a 5x4.25" (5x108mm) that fits 1989-1997 Thunderbird and Lincoln Mark VIIIs. All applications will bolt on without spacers or adapters.