The following technical information should be used to gather measurements to ensure a proper wheel fit for most applications.

Here are the two key measurements to be considered before buying any type of racing wheels for your race car:

WHEEL WIDTH and WHEEL REAR SPACING

Wheel Width

• This information can be determined by measuring the distance between the inner edges of the rim beads.  See Illustration "A".

Wheel Rear Spacing (Offset)

• To measure rear spacing, place wheel face down, lay a straight edge or rule across the back of the wheel and measure down to the mounting pad surface.  See Illustration "B".
  
  

Return to Main Technical Center Page

Related Tech Topics:  Measuring Wheel Bolt Circle  |  Lug Nut Torque Specs