Hope RX4+ Disc Brake Caliper
Best premium braking upgrade for serious cyclists.
A high-performance four-piston upgrade for drop-bar hydraulic systems. It delivers significantly improved stopping power and modulation over stock two-piston calipers, providing the confidence needed for technical gravel and road descents.
$159.40
at
The Bike and Trike
More RX4 options
Who it's for
- Cyclists seeking reliable, powerful braking performance for demanding rides.
- Riders upgrading their brakes without replacing their entire system.
- Long-term riders valuing longevity and easy maintenance for their components.
Who should skip it
- Budget-conscious cyclists looking for more affordable braking solutions.
- Riders who prefer universal parts or easy access to replacement components.
- DIY mechanics with limited experience in advanced hydraulic brake setups.
Performance breakdown
Stopping Power
Four pistons deliver immense, confidence-inspiring force on steep, technical descents.
Braking Modulation
Offers nuanced lever feedback that makes scrubbing speed feel incredibly intuitive.
Build Quality
Precision-machined aluminum construction sets the industry standard for long-term durability.
System Stiffness
Rigid design eliminates lever mushiness for a crisp, direct braking feel.
Installation Complexity
Requires careful bleeding and setup, best suited for experienced home mechanics.
Heat Management
Robust design dissipates heat effectively during long, sustained braking efforts.
Key Specs
Caliper Type
Flat mount +20mm
Pistons
4
Fluid Type
DOT
Compatibility
SRAM hydraulic systems
Mount Type
Flat mount
Color
Silver
Know before you buy
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Ask Metto anything about the Hope RX4+ Disc Brake Caliper before you decide.