Features2x kingpin bolts2x bolt nutshollow build throughoutraw silver finishperfect for saving some excess weight right where you need it mostmaterials100 aluminiumgain some extra air with the hollow kingpin bolts from thunder allowing you to save weight anywhere and everywhere this ergonomic two pack just goes to show that thunder have left no stone unturned show the world that every little bit helps by rocking some serious altitude today