Hope RX4 Brake Caliper

Yes, the RX4 is specifically designed to work with Shimano hydraulic road levers that use mineral oil. It is engineered to maintain the same lever feel and modulation you expect from your stock system.

The four-piston setup provides more consistent braking power and better heat management, especially on long descents. It also allows for more precise modulation, giving you greater control over your stopping power in varied conditions.

Yes, the RX4 is compatible with 140mm, 160mm, and 180mm rotors. Just ensure your frame or fork is rated for the specific rotor size you choose to install.

It is quite straightforward. The caliper features a top-entry pad design, which means you can swap out your brake pads without needing to remove the caliper from your bike frame.

Yes, this specific version of the RX4 is compatible with both Shimano and Campagnolo mineral oil levers. It offers a great way to upgrade your braking performance regardless of which of those two groupsets you are running.

Absolutely. Because the caliper is machined from a single piece of aluminum rather than two bolted halves, it is significantly stiffer. This prevents the caliper from flexing under heavy braking loads, resulting in a much more direct and responsive lever feel.