The selection of wheels and tires for your BMW must be made carefully, with consideration for several factors, including the type of car, the dimensions, and the manner in which the vehicle is used, with respect to the routes that are taken on a daily basis. Here you find sizes of tires, wheels, rims, spacing screws and the rear of the vehicle for the brand BMW Z4 (E89) 2009 sDrive30i

Stock 225/50 R17 Replace 225/45 R18 225/40 R18

Stock 8x17 8x18 Replace 8x19

Rims technical details for BMW Z4 (E89) 2009 sDrive30i Number of Holes 5 Pitch Circle Diameter (PCD) 120 millimeters Hub Bore (DIA) 72.6 millimeters Number of Holes: The number of lug holes is simply the number of holes in the wheel used to mount the wheel on the vehicle. PCD: The pitch circle diameter represents the spacing of the lug holes. Hub Bore: The center bore of the wheel is the machined circular hole on the back of a wheel. The center bore opening is machined precisely to center the wheel on the hub of the vehicle.