44489730 15 RCS radial handlebar master cylinder. Brake. SD

If you are looking for professional-grade feel at your fingertips, the Brembo 15 RCS radial master cylinder is a top-tier choice for single-disc Harleys with 1-inch handlebars. This forged aluminum unit features a hard-anodized gray body and a black lever, utilizing the same internal piston and seal technology found in MotoGP and World Superbike racing. One of the best features is the adjustable roller cam, allowing you to set the lever pivot point at either 18mm or 20mm to fine-tune the braking response. It also includes a patented folding lever design to prevent damage during a tip-over. It comes with a double banjo bolt, though you may need to order a micro brake light switch separately if your setup requires it for street use.