Provide up to a 30% more stopping power than factory or factory-sized brake rotorsUpgrades not only performance, but improves the style of your factory wheelFloating 420 Stainless Steel Jagged® Rotor is engineered for optimum performance and heat dispersionCNC machined billet brake caliper adapters are included in each kit to relocate your factory caliper for use with the 15'' oversized brake rotorEasy bolt-on installation, each kit utilizes the factory brake caliper, rotor hardware and brake line Each kit includes an oversized 15'' floating rotor, brake caliper adapter bracket and necessary chrome hardwareDesigned to work with factory fork legs. Will not work with Arlen Ness Hot Legs fork legs.Only for 18'' wheels or larger