The 2014 Smart fortwo passion cabrio 175/55-15 Front 195/50-15 Rear bolt pattern is 3-112 mm. This means there are 3 lugs and the diameter of the circle that the lugs make up measures 112 mm or 4.4 inches across. To get a close measurement of your 3 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.
