how to replace hydraulic hose sram


How to Replace Hydraulic Hose SRAM: A Step-By-Step Guide


Hydraulic hoses are an integral part of any SRAM hydraulic braking system. Over time, these hoses may wear out or develop leaks, which can impact the performance and safety of your bike. In this comprehensive guide, we will take you through the process of replacing a hydraulic hose in an SRAM brake system. By following these step-by-step instructions, you can easily replace the hose and restore the functionality of your brakes.

1. Understanding Hydraulic Brake Systems:

Before diving into the replacement process, it's important to have a basic understanding of how hydraulic brake systems work. Hydraulic brakes use fluid pressure to transmit force from the brake lever to the brake caliper, resulting in effective braking power. The hydraulic hose connects the brake lever to the caliper, allowing the fluid to flow and operate the brake. Familiarize yourself with the components of your SRAM brake system to ensure a smooth replacement process.

2. Gathering the Necessary Tools and Materials:

To replace a hydraulic hose in your SRAM brake system, you will need a few specific tools and materials. These include:

- New hydraulic hose compatible with SRAM brake system

- Set of Allen wrenches

- Cable cutter or sharp knife

- Hydraulic brake fluid (compatible with SRAM brakes)

- Bleed kit (containing syringes, tubing, and bleeding edge tool)

- Rag or towel for cleanup

Ensure that you have all the tools and materials at hand before you begin the replacement process.

3. Removing the Old Hydraulic Hose:

Start by shifting your attention to the brake lever. Depending on your SRAM brake model, you may need to remove the front wheel or brake pads to gain easier access. Using an Allen wrench, undo the screw holding the brake lever assembly to the handlebar. Set the lever assembly aside, being cautious not to spill any brake fluid.

Next, locate the fitting that connects the hydraulic hose to the lever. Loosen the fitting using the appropriate Allen wrench size and gently remove the old hose. Make sure to collect any residual brake fluid to avoid spillage. Dispose of the old hose responsibly.

4. Cutting the New Hose to Length:

Carefully measure the length of the old hose and cut the new hose to match it. Use a cable cutter or a sharp knife to achieve a clean, precise cut. Avoid bending or crushing the hose during this process. It's recommended to cut the hose about an inch longer than needed, allowing room for adjustments during installation.

5. Attaching the New Hydraulic Hose:

Take one end of the new hydraulic hose and insert it into the fitting on the brake lever assembly. Tighten the fitting securely using the Allen wrench. Ensure that it is snug but not overly tightened to avoid damaging the threads. Make sure the hose is inserted deeply and properly seated in the fitting.

Next, move to the brake caliper and locate the hose connection point. Remove the retaining clip or banjo bolt securing the old hose. Insert the other end of the new hose and tighten the fitting adequately. Again, ensure that the hose is properly seated and there are no visible gaps.

6. Bleeding the Hydraulic Brake System:

To ensure optimal performance, it's essential to remove any air bubbles or contaminants from the hydraulic system through a process known as bleeding. Connect the bleed kit to the brake lever and caliper using the provided syringes and tubing. Follow the manufacturer's instructions to bleed the system thoroughly.


Replacing a hydraulic hose in your SRAM brake system is a task that might seem intimidating at first, but with the right tools and proper guidance, it can be accomplished successfully. By understanding the basics of hydraulic brake systems, gathering the necessary tools, and following each step meticulously, you can ensure the safe and effective replacement of your hydraulic hose. Remember, if you are unsure of any step, consult a professional bike mechanic for assistance.


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