Performance Machine Diaphragm Contour

When you're rebuilding the brake master cylinder on your motorcycle, getting the right internal parts is key to a solid repair. This Diaphragm Contour from Performance Machine is a direct replacement for the diaphragm in your master cylinder.

This diaphragm is made to the original specifications, ensuring it will seal properly and function as intended within the master cylinder bore. It's a well-built component designed to keep your brake fluid contained and your braking system working correctly. Replacing this part is a straightforward way to restore proper function to your master cylinder without needing to replace the entire unit.