Hope RX4+ Disc Brake Caliper
Best performance upgrade for discerning riders seeking reliable stopping power.
A high-performance four-piston upgrade that brings mountain bike-level stopping power to drop-bar setups. It offers exceptional modulation and heat management, though it requires specific fluid compatibility to function correctly.
$159.40
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Who it's for
- Cyclists seeking superior stopping performance and confidence on varied terrain.
- Experienced riders desiring fine-tuned brake feel and consistent control.
- Long-term owners valuing product longevity and easy maintenance.
Who should skip it
- Budget-conscious riders looking for economical brake upgrades.
- Newcomers to bike mechanics unfamiliar with component compatibility.
- Riders prioritizing absolute silence from their braking system.
Performance breakdown
Stopping Power
Four-piston architecture delivers immense, confidence-inspiring force on steep descents.
Braking Modulation
Exceptional lever feel allows for precise, nuanced speed control.
Heat Management
Robust design effectively dissipates heat during long, technical braking sections.
Build Quality
Precision CNC-machined aluminum offers unmatched durability and a premium finish.
Installation Ease
Flat-mount integration is clean, though DOT fluid bleeding requires patience.
System Compatibility
Seamlessly integrates with SRAM systems for a refined, upgraded feel.
Key Specs
Caliper Type
Front flat mount +20mm direct
Piston Count
4
Hydraulic Fluid Type
DOT
Compatibility
SRAM systems
Mount Type
Flat mount
Color
Purple
Know before you buy
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