Hope RX4+ Disc Brake Caliper

No, this specific version of the RX4+ is designed exclusively for SRAM hydraulic systems that utilize DOT fluid. You will need to ensure your lever system is compatible with DOT fluid before installation.

The +20 designation indicates that the caliper is designed to be used with a 160mm rotor on a frame or fork that has a native 140mm flat mount interface. It essentially builds the adapter into the caliper body for a cleaner, more rigid setup.

Absolutely not. This caliper is engineered specifically for DOT fluid systems. Using mineral oil will cause the seals to swell and degrade, leading to immediate brake failure and potential safety hazards.

Yes, the RX4+ comes with the necessary mounting hardware to attach the caliper to your fork. However, you should double-check that your specific fork's mounting depth is compatible with the included bolt lengths.

The RX4+ is machined from a single piece of aluminum, which provides significantly more stiffness than many stock calipers. This rigidity translates to a more consistent, solid lever feel and better heat management during long, technical descents.