Shimano Tiagra BR-RS405-F User's Manual

Shimano Tiagra BR-RS405-F Brake manual cover

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Shimano Tiagra BR-RS405-F Brake Specification

The Shimano Tiagra BR-RS405-F brake is a hydraulic disc brake system designed for road bicycles, offering reliable performance and enhanced stopping power. Engineered for use with the Tiagra groupset, it features a sleek and compact caliper design that integrates seamlessly with modern road bike aesthetics. The calipers are constructed from durable, lightweight materials, ensuring a balance between weight savings and robust performance. The BR-RS405-F utilizes a post-mount design for straightforward installation and compatibility with a wide range of frames and forks.

This brake system incorporates Shimano's advanced braking technology, which ensures consistent and smooth braking in various weather conditions. It uses a two-piston mechanism that provides efficient modulation and control, which is crucial for maintaining stability and safety at high speeds or on challenging terrains. The system is compatible with a variety of rotor sizes, allowing cyclists to customize their setup according to their specific needs and preferences.

The hydraulic system is designed for easy maintenance, featuring Shimano's One Way Bleeding technology, which simplifies the bleeding process for hassle-free upkeep. This technology minimizes air bubbles in the hydraulic system, ensuring consistent brake performance over time. The Shimano Tiagra BR-RS405-F is also compatible with Shimano's Ice Technologies rotors, which are designed to dissipate heat effectively, further enhancing braking efficiency and reducing the risk of brake fade on long descents.

Overall, the Shimano Tiagra BR-RS405-F brake offers a blend of advanced technology, reliable performance, and user-friendly maintenance, making it a solid choice for road cyclists seeking dependable braking capabilities.

Shimano Tiagra BR-RS405-F Brake F.A.Q.

How do I properly adjust the Shimano Tiagra BR-RS405-F brakes for optimal performance?

To adjust the Shimano Tiagra BR-RS405-F brakes, first ensure that the wheel is correctly seated in the dropout. Check that the brake rotor is true and free of warps. Use the barrel adjuster at the brake lever to fine-tune cable tension. For further adjustments, use the 2mm hex key to adjust the brake pads so they are evenly spaced from the rotor.

What should I do if my Shimano Tiagra BR-RS405-F brakes are squeaking?

A common cause of squeaking brakes is contamination on the rotor or pads. Clean the rotor with isopropyl alcohol and inspect the brake pads for any debris or glazing. If necessary, lightly sand the surface of the brake pads to remove any contaminants.

How can I reduce brake lever travel on my Shimano Tiagra BR-RS405-F brakes?

To reduce brake lever travel, ensure that the hydraulic system is properly bled of any air bubbles. Check the fluid level and top it off if needed. If the issue persists, you may need to adjust the brake pads closer to the rotor using the pad adjustment screws.

How often should I bleed my Shimano Tiagra BR-RS405-F hydraulic brakes?

It’s recommended to bleed Shimano Tiagra BR-RS405-F hydraulic brakes once a year or whenever you notice a decrease in brake performance, such as spongy lever feel or excessive lever travel.

What type of brake fluid is compatible with Shimano Tiagra BR-RS405-F?

Shimano Tiagra BR-RS405-F brakes use Shimano Mineral Oil. Do not use automotive brake fluids like DOT fluid, as they can damage the brake system.

How can I fix a brake rub issue on my Shimano Tiagra BR-RS405-F?

First, ensure that the wheel is properly aligned in the frame. Check the rotor for any bends or warps. If the rotor is true, adjust the brake caliper position using the mounting bolts to ensure the rotor is centered between the pads.

What are the signs that my Shimano Tiagra BR-RS405-F brake pads need replacing?

Signs that brake pads need replacing include a noticeable decrease in braking performance, noise during braking, and brake pads that are worn down to less than 1mm thickness.

How do I replace the brake pads on my Shimano Tiagra BR-RS405-F brakes?

To replace the brake pads, remove the wheel and use a flathead screwdriver to carefully push back the pistons. Remove the retaining pin and slide out the old pads. Insert the new pads, ensuring they are correctly aligned, and reinsert the retaining pin.

How can I ensure my Shimano Tiagra BR-RS405-F brakes are properly aligned?

To ensure proper alignment, loosen the caliper mounting bolts slightly, squeeze the brake lever to center the caliper on the rotor, and then retighten the bolts while holding the lever. This helps center the caliper and pads on the rotor.

What should I do if I experience brake fade with my Shimano Tiagra BR-RS405-F brakes?

Brake fade can occur due to overheating. Ensure that the rotor and pads are clean and not contaminated. Consider upgrading to a larger rotor for better heat dissipation, and check if the brakes need to be bled to remove any air bubbles in the system.