Diameter 20"Width 8.5"Lugs 5Offset +35 mm.Backspacing 6.13 in.Bolt Circle 114.3 in.
KMC 685 District Wheels
This 20x8.5" KMC 685 District wheel is a great way to give your 2005-2015 Mustang an aggressive new look. With a 5 spoke design and a satin black finish, this wheel looks great on the front or back of any color S197 or S550. These wheels feature a recessed center to add a sleek style and look great with black or chrome lug nuts. Add a 20x10.5" wheel in the rear with these wheels up front for a staggered or concave look. KMC logo center cap included.
THESE WHEELS WILL NOT CLEAR FACTORY BREMBO BRAKES UNLESS USING A MINIMUM OF A 1/8" SPACER
Lug Nuts Required For The Use On A 2015 Mustang
If you are buying these wheels for your 2015 S550 Mustang, you will have to buy the 2015 Spline Lug Nut Kit. LRS-W55014S (Chrome) or LRS-W55014SB (Black). Your stock lug nuts will not work!
KMC Wheels has become an industry leader in aftermarket wheels. With unique designs and high quality components, KMC has supplied the Mustang community with a variety of custom rims including the District, Nova, and Rockstar. These wheels are offered in a variety of sizes and finishes to get the perfect look on your Mustang. Pick up a set for your Stang at LatemodelRestoration.com!
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The wheel size is the diameter of the wheel, in inches, not counting the tire.
Modern tires in North America have several other measurements associated with their size.
A tire designated as a "225/70R14" denotes a tire with the following dimensions: width of tread: 225 mm; ratio of tire height to width: 70 percent; rim diameter: 14".
Therefore a 185/70R14 has the same rim diameter and aspect ratio, but a smaller overall diameter and narrower tread face than the 225/70R14.
The easiest way to measure backspace is to lay the wheel face down onto the ground so the backside of the wheel is facing up.
Take a straight edge and lay it diagonally across the inboard flange of the wheel. Take a tape measure and measure the distance from where the straight edge contacts the inboard flange to the hub mounting pad of the wheel. This measurement is the backspace.
The photo below shows three wheels with 2", 3", & 4" backspace.
Wheel Bolt Circle
The bolt pattern or bolt circle is the diameter of an imaginary circle formed by the centers of the wheel lugs. Bolt patterns can be 4, 5, 6, or 8 lug holes. A bolt circle of 4x100 would indicate a 4 lug pattern on a circle with a diameter of 100mm.
The diagram indicates the proper measuring methods. 6 lug wheels are measured like the 4 lug wheels.
The offset, measured in millimeters, can be negative or positive, and is the distance from the hub-mounting surface to the rim's true centerline. A positive offset means the hub-mounting surface is closer to the outside edge of the wheel; a negative offset means the hub-mounting surface is closer to the inside edge of the wheel. Offset affects the scrub radius of the steering and it is advisable to stay within the limits allowed by the vehicle manufacturer. If tires are fitted which are significantly wider than those specified by the manufacturer, a compromise may have to be adopted whereby a wheel with less offset is used to prevent the tire rubbing on the suspension.
Wheel Lug Pattern
Wheel lugs or bolt pattern is merely the number of bolts or lugs on the wheel. As the bolts will be evenly spaced, the number determines the bolt pattern. For example, most U.S. passenger cars have 5 bolts while compact models sometimes have only 4 and pick-up trucks can have as many as 6 or 8.