Hope RX4+ Disc Brake Caliper
Best premium upgrade for road and gravel cyclists seeking superior control.
This monobloc caliper transforms mushy drop-bar braking into a crisp, high-performance experience. While the four-piston design adds a bit of weight compared to standard options, the trade-off is undeniable: you gain immense stopping power and the kind of precise modulation that makes technical descents feel effortless.
$150.50
More RX4 options
Who it's for
- Road and gravel riders seeking maximum control on steep descents
- Endurance cyclists tackling long, technical alpine descents
- Custom bike builders who prioritize both style and substance
Who should skip it
- Inexperienced home mechanics without specialized hydraulic tools
- Cyclists who frequently swap components between different bike brands
- Weight-conscious racers focused on every gram of their climbing setup
Performance breakdown
Stopping Power
Four-piston architecture delivers immense, confidence-inspiring force for steep, technical descents.
Braking Modulation
Exceptional lever feedback allows for precise, nuanced speed control in loose conditions.
Build Rigidity
The monobloc CNC design eliminates flex for a remarkably crisp, solid feel.
Maintenance Ease
Top-loading pads make quick swaps simple without removing the wheel.
System Compatibility
Broad mounting options integrate seamlessly with most modern gravel and road frames.
Thermal Management
High-grade aluminum construction effectively dissipates heat during long, sustained braking efforts.
Key Specs
Material
2014-T6 Aluminum
Brake Type
Hydraulic Disc
Intended Use
Road Cycling, Gravel Cycling
Number of Pistons
4-Piston
Pad Type Compatibility
Hope Tech E4
Hydraulic Fluid Type
DOT Fluid
Mount Type
Flat Mount, Post Mount
Compatible Brands
SRAM, Hope
Know before you buy
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Ask Metto anything about the Hope RX4+ Disc Brake Caliper before you decide.
