Hope RX4+ Disc Brake Caliper
Best performance upgrade for discerning road and gravel riders.
A high-performance hydraulic upgrade designed for road and gravel bikes using flat mount standards. It delivers consistent, reliable stopping power with a refined feel that improves modulation over stock components.
$159.40
at
Mojo Cyclery
More RX4 options
Who it's for
- Cyclists seeking superior braking control and reliability for road or gravel.
- Riders prioritizing long-lasting, robust components for their bikes.
- Owners of Shimano or SRAM road/gravel groupsets wanting an upgrade.
Who should skip it
- Budget-conscious cyclists looking for more affordable brake upgrades.
- Riders unfamiliar with brake system compatibility or seeking universal solutions.
- Casual riders or those not pushing their bikes to the performance limit.
Performance breakdown
Stopping Power
Delivers authoritative, immediate bite that inspires confidence on technical descents.
Brake Modulation
Offers precise, granular control for feathering speed through tight gravel corners.
Build Quality
CNC-machined aluminum construction feels exceptionally robust and built to last.
Installation Ease
Flat mount standard simplifies setup, though hydraulic bleeding requires some patience.
Heat Management
Efficient thermal dissipation prevents brake fade during long, sustained mountain descents.
Aesthetic Appeal
Distinctive anodized finish adds a premium, custom touch to any build.
Key Specs
Brake Type
Hydraulic Disc
Mount Type
Flat Mount
Hydraulic Fluid Type
Mineral Oil
Intended Use
Road Cycling, Gravel Cycling
Brake Lever Actuation
Hydraulic
Rotor Included
No
Brake Position
Front
Color
Orange
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