Hope V4 Cap

No, this cap is specifically engineered for the Hope V4 hydraulic disc brake system. It will not fit other models due to differences in reservoir size and design.

This product is the cap itself. It does not include the diaphragm or seal, so you should reuse your existing seal if it is still in good condition, or purchase a separate service kit if your seal is worn.

Using genuine Hope parts ensures the exact tolerances required for a hydraulic system. Aftermarket alternatives often lack the precise fit needed to maintain a perfect seal, which can lead to fluid leaks or inconsistent lever pressure.

Installation is straightforward and typically only requires a standard hex key or Torx driver, depending on your specific lever setup. Just be careful not to overtighten the bolts, as the reservoir housing can be delicate.

You should consider replacing the cap if the original is cracked, the bolt holes are stripped, or if you notice persistent weeping of brake fluid around the reservoir area that isn't solved by a simple seal replacement.