Description

The Hope RX4+ caliper is an advanced hydraulic disc brake system optimized for road and cyclocross bikes with drop bars. It benefits from Hope's 25 years of experience in crafting high-end hydraulic brakes. The caliper itself is a monobloc unit, CNC machined from a single piece of 2014-T6 aluminum, resulting in a rigid structure that enhances the direct feel and precision of the brakes, effectively reducing any sensation of a soft or "fuzzy" lever.

This caliper features a lightweight, slimline 4-piston design that ensures both reliable and powerful braking force, critical for the high-speed demands of road and cyclocross riding. The strength of the caliper does not come at the expense of weight, thanks to the high-quality aluminum and CNC machining process.

Maintenance concerns are addressed with a fully serviceable design, ensuring that the caliper can have a prolonged service life with proper care. The top entry pad fitting design simplifies pad changes, making it a quick and hassle-free process.

Designed to fit flat mount setups, this caliper accommodates a range of rotor sizes including 140, 160, and 180mm, providing flexibility for riders to choose the best rotor size to match their riding style and the conditions they ride in. This DOT fluid-compatible caliper will have bore caps marked with a 'D', signifying its suitability for use with DOT brake fluid systems typically found in higher-performance braking setups.