TRP HY/RD Flat Mount Disc Brake Caliper

The TRP HY/RD Flat Mount Disc Brake Caliper delivers hydraulic braking performance for road and cyclocross bikes using cable-actuated systems. It combines the modulation and stopping power of hydraulics with the simplicity of mechanical levers, offering a reliable solution for riders seeking consistent control and smooth operation across a range of conditions.

Key Features and Benefits:

Open hydraulic system compatible with Shimano and SRAM 11-speed road shift levers: This design allows seamless integration with popular drivetrain setups. The outcome is a simple upgrade to hydraulic braking without replacing your levers.

True plug-and-play installation with cable-actuated braking systems: The caliper works with standard mechanical brake levers, requiring minimal setup. The outcome is straightforward compatibility for faster, easier installation.

Automatic hydraulic reservoir compensation for pad wear: The caliper adjusts for pad thickness as they wear, keeping braking performance consistent. The outcome is less maintenance and reliable stopping power over time.

Lightweight design at 205g per caliper: Its low weight reduces the overall mass of the braking system. The outcome is a more efficient ride with less added weight on the bike.

TRP semi-metallic pads with Shimano M525/M515 pad compatibility: The pads deliver balanced braking performance and heat management, with wide aftermarket availability. The outcome is dependable braking and easy pad sourcing.

Compression-less housing recommendation for optimal performance: This housing type reduces cable flex and drag, improving lever feel and response. The outcome is sharper, more precise braking control.

Available in black anodised or high polish grey finishes: Two durable finish options provide corrosion resistance and long-lasting appearance. The outcome is a caliper that maintains performance and looks over time.

Flat mount compatibility with optional FF-5 adapter for fork mounting: This design supports standard 140mm and 160mm rotor sizes with correct adapters. The outcome is a versatile fit for a wide range of road and cyclocross frames.

The main outcome for most riders is achieving the controlled, powerful feel of hydraulic brakes without the complexity of a full hydraulic system. The HY/RD delivers this by pairing cable-actuated simplicity with a self-adjusting hydraulic reservoir and high-quality braking components, ensuring consistent, smooth braking performance with reduced maintenance needs.

Choose the TRP HY/RD Flat Mount Disc Brake Caliper for a dependable braking upgrade that combines hydraulic power, mechanical simplicity, and easy integration with existing setups. Its blend of performance, low maintenance, and wide compatibility makes it a practical solution for riders seeking reliable braking control.

Specification:

• Sold as a calliper only, not a set.
• Weight: 205g per calliper.
• Available in black anodised with polished cap, or high polish grey.
• True ‘plug-and-play’ compatibility with existing cable actuated systems.
• Compression-less brake housing strongly recommended for best performance.
• Hydraulic reservoir automatically compensates for pad wear.
• TRP’s own semi-metallic pad. Callipers are also compatible with Shimano M525/M515 pads.
• Rotors, adapters, and flat mount mounting bolts sold separately.
• All flat mount callipers being mounted to the fork require the FF-5 Front Flat Mount 140/160mm adapter.
• For help identifying mounting type see our guide here.