TC Bros Solid Billet Handlebar Riser Bushings For Harley TC Bros. solid handlebar riser bushings enhance motorcycle handle stability, especially beneficial for taller handlebars and aggressive riding. Quick and straightforward to install, these bushings replace stock rubber ones, providing improved performance and durability. Features: Machined from 6061-T6 billet aluminum Precision CNC Machined for a perfect fit Fits with your stock 1/2 diameter riser bolts Made in the USA