Hope RX4+ Disc Brake Caliper
Best premium braking upgrade for discerning cyclists seeking superior control.
A high-performance hydraulic caliper designed for precision stopping power on modern road and gravel setups. It offers excellent modulation and reliability for riders who demand consistent control in varied terrain.
$159.40
at
Mojo Cyclery
More RX4 options
Who it's for
- Cyclists seeking powerful, controllable braking for road, gravel, or cyclocross.
- Riders prioritizing longevity and dependable performance from their components.
- Enthusiasts tackling steep terrain or demanding high-performance braking.
- Riders upgrading their calipers while retaining existing lever systems.
Who should skip it
- Budget-conscious riders or those seeking entry-level component upgrades.
- Weight-weenie road racers or ultralight bike builders.
- Riders preferring widely available and inexpensive replacement parts.
Performance breakdown
Stopping Power
Delivers immense, reliable bite even on the most technical descents.
Brake Modulation
Offers nuanced lever feel that makes scrubbing speed incredibly intuitive.
Build Quality
CNC-machined construction sets the industry standard for durability and finish.
Aesthetic Appeal
Distinctive anodized finish adds a premium, custom touch to any build.
Installation Ease
Flat mount standard simplifies setup, though bleeding requires careful, methodical attention.
Heat Management
Robust design effectively dissipates heat during prolonged, heavy braking efforts.
Key Specs
Brake Lever Actuation
Hydraulic
Brake Caliper Type
Flat Mount
Brake Position
Rear
Hydraulic Fluid Type
Mineral Oil
Color
Purple
Know before you buy
Still have a question?
Ask Metto anything about the Hope RX4+ Disc Brake Caliper before you decide.