2008 Acura RDX Base Model Bolt Pattern

Bolt Pattern
5x114.3mm = 5x4.5 inches
Tire Sizes
Option 1
235/55R18 = 28.2x9.3R18
Option 2
245/45R19 = 27.7x9.7R19

The 2008 Acura RDX Base Model bolt pattern is 5-114.3 mm. This means there are 5 lugs and the diameter of the circle that the lugs make up measures 114.3 mm or 4.5 inches across. To get a close measurement of your 5 lug bolt pattern without a bolt pattern tool you should measure from the center of one lug to the outer edge of the lug furthest from it.