Extreme Max Fat Backer Pack Of 12. Extreme Max manufactured these Tools & Hardware from rugged heat-treated aluminum alloy that will resist wear and tear and the effects of corrosion making this Extreme Max Fat Backer a perfect option for your track. Please note that the base width of this Extreme Max Fat Backer is over 2.5 inches making it the perfect size for most tire widths. However please keep in mind that the stud backers are designed to hold Fat Head studs side-by-side. These backing plates are not meant for permanent studs. Therefore replacements will need to be removed and replaced with new ones. To ensure that you're utilizing some of the best hardware the motorcycle industry has to offer pick up this Extreme Max Fat Stud Backing Plate. Features of Extreme Max Fat Backer Aluminum double backer Designed to accept two Fat Head studs side-by-side Made from premium heat-treated aluminum alloy Super sized to hold the Fat Head studs in place .180" thick and over 2.5" wide Package Contents: Extreme Max Fat Backer Extreme Max 5800.9039: Fat Backer Pack Of 12