About the productDescriptionFeatures Every wheel is engineered and designed for it's intended use, having been thru numerous finite element analysis and field tests. The result is a wheel that is lighter, stronger, faster. Specifications Color Finish: Matte Black. Material: Aluminum Alloy. Wheel Size: 17 x 8.5 in. . Bolt Pattern: 6 on 135. Backspacing: 4.75". Weight: 32 lbs.