4×100 Wheel Spacers



Thickness * 

Product Description

These wheel spacers are for 4 bolt wheels, 4x100mm pattern, as found on all 2002, E21 and E30 models (except the E30 M3). Machined from billet aluminum (except for 1/8″ is steel). These have a tumbled or polished finish. ONLY 15mm and 20mm are hub-centric, it is physically impossible to have a hub-centric spacer for these cars less than 13mm thick given the chamfer on the face of the wheel hub.

Available in the following thicknesses:

3.1mm – 1/8″

5mm – .20″

6.35mm – 1/4″

8mm – 5/16″

9.5mm – 3/8″

12mm – .48″

15mm – .59″

20mm – .79″

Not sure what size you need? A simple “shade-tree” solution used to determine what size spacer is to grab a handful of 12mm washers. Stack the washers onto at least two of your wheel studs. At various intervals, test your wheel fitment. After determining your wheel’s optimal fitment, take the washers off and measure the thickness of the stack of washers. Then find a spacer in the closest available size.

Not sure if your nut has enough thread contact? A simple “shade-tree” rule-of-thumb is that the nut should be turned onto the stud enough to equal the thickness of the stud itself. With the 12×1.5 thread pitch, this equates out to roughly 8 full turns of the nut.


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