The 4-11/16" (120 mm) brake disc for the Swagtron Swagger 5 Elite folding electric scooter is commonly called a rotor. Our replacement steel brake disc is the same as the one on a brand-new Swagtron Swagger 5 Elite. This brake rotor uses six 13/64" (5.5 mm) mounting holes spaced 7/8" (22 mm) apart.