Hope RX4+ Disc Brake Caliper

Yes, the Hope RX4+ is specifically engineered for flat mount configurations, making it a direct fit for most modern road and gravel frames that utilize this standard.

This specific version of the RX4+ is designed exclusively for mineral oil systems. Please ensure your existing brake levers are compatible with mineral oil before installation.

No, this particular model is configured specifically for the rear brake position. You will need to purchase the corresponding front-specific caliper if you are looking to upgrade both ends of your bike.

The RX4+ is machined for increased stiffness, which typically results in better modulation and a more consistent lever feel compared to many stock calipers. This allows for more precise braking control, especially during technical descents or in wet conditions.

The purple finish is primarily an aesthetic choice, allowing you to customize the look of your bike with Hope's signature anodized colorway. The anodizing process also provides a durable, corrosion-resistant layer that helps protect the aluminum body over time.