Hope RX4 Caliper Seal Kit
Best maintenance solution for cyclists restoring hydraulic brake caliper performance.
A refined monobloc design that prioritizes stiffness and modulation for dropbar setups. It replaces the previous iteration with a lighter, more precise four-piston architecture that effectively eliminates common issues like pad rub and inconsistent lever feel.
$192.99
at
Diamond Cycle
More RX4 options
Who it's for
- Mechanics prioritizing factory-spec reliability and perfect fitment
- Cyclists needing to restore crisp braking feel and stop leaks
- Home mechanics wanting an all-in-one, hassle-free overhaul solution
Who should skip it
- Novice mechanics lacking hydraulic brake service experience
- Budget-conscious riders seeking affordable, non-branded alternatives
- Owners of non-RX4 brake systems requiring universal parts
Performance breakdown
Seal Integrity
Precision-molded components ensure a factory-tight seal against high-pressure DOT fluid.
Compatibility Range
Seamlessly integrates with both flat and post mount RX4 caliper configurations.
Restoration Efficacy
Effectively eliminates sticky pistons and restores crisp lever feedback.
Installation Complexity
Requires advanced mechanical knowledge and specific tools for successful installation.
Material Durability
High-grade compounds resist degradation from harsh hydraulic fluid over time.
Maintenance Value
Extends the lifespan of expensive calipers significantly compared to full replacement.
Key Specs
Material
2014 T6 aluminium
Number of pistons
4
Brake type
Flat Mount and Post Mount
Hydraulic fluid type
DOT
Compatible rotor sizes
140mm, 160mm, 180mm
Intended use
Road and Cyclocross
Design
Monobloc
Know before you buy
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Ask Metto anything about the Hope RX4 Caliper Seal Kit before you decide.