Galfer Waved Brake Rotor for DynaFront Rotor size 11. 8" (300mm) Rear Rotor size 11. 5" (292mm) Low Rider S ST & Fat Bob require 2 rotors in the front. Be sure to add to rotors to the cart for front size for these models. Made from 420 high carbon stainless Tier 1 steel Laser cut, never stamped Each rotor is individually heat treated and double disc parallel ground to ensure perfect flatness WAVE design allows for lower operating temperatures at extreme conditions WAVE design is much