1. Introduction
This manual provides comprehensive instructions for the installation, operation, and maintenance of your SRAM Apex A1 Left Rear Hydraulic Disc Brake and Lever. Designed for precise control and reliable braking, this system is suitable for various cycling disciplines including road and cyclocross. Please read this manual thoroughly before installation and use to ensure proper function and safety.
Included Components: Disc Brake & Lever (Left/Rear), 2000mm Hydraulic Hose, Steel-backed Organic Brake Pads.
Note: Rotor is sold separately and is not included with this product.
2. Safety Information
Always prioritize safety when working with bicycle components. Improper installation or maintenance can lead to serious injury or death. If you are unsure about any part of the installation or adjustment process, consult a qualified bicycle mechanic.
- Always wear appropriate safety gear, including eye protection, when performing installation or maintenance.
- Ensure all fasteners are tightened to the manufacturer's specified torque values. Overtightening or undertightening can cause component failure.
- Hydraulic brake systems contain DOT fluid. Avoid contact with skin and eyes. Refer to the DOT fluid manufacturer's safety data sheet for handling instructions.
- Regularly inspect your brake system for wear, damage, or leaks. Replace worn or damaged components immediately.
- Test brakes thoroughly in a safe environment before riding.
3. Setup and Installation
Installation of hydraulic disc brakes requires specific tools and knowledge. It is highly recommended that installation be performed by a professional bicycle mechanic.
3.1 Caliper Mounting (Flat Mount)
The SRAM Apex A1 caliper features a flat mount design for seamless integration with modern frames. Ensure your frame is compatible with flat mount calipers.
- Attach the caliper to the frame using the appropriate flat mount bolts.
- Ensure proper alignment of the caliper over the rotor. Misalignment can cause rubbing and reduced braking performance.
- Tighten mounting bolts to the manufacturer's specified torque.
Image 1: SRAM Apex A1 Flat Mount Caliper. This image shows the compact and integrated design of the brake caliper, highlighting its flat mount interface for modern bicycle frames.
3.2 Lever and Hose Installation
The left lever is designed for rear brake operation. The system includes a 2000mm hydraulic hose, providing ample length for various bike configurations.
- Mount the brake lever securely to your handlebar.
- Route the hydraulic hose from the lever to the caliper, ensuring it does not interfere with steering or other moving parts.
- The system is equipped with a Stealth-a-majig connector for straightforward hose connection. Follow SRAM's official bleeding instructions after installation to ensure proper brake function.
Image 2: SRAM Apex A1 Left Rear Brake Lever. This image displays the ergonomic design of the left brake lever, featuring the textured hood for enhanced grip and comfort.
Image 3: SRAM Apex A1 Brake Lever Side View. A side profile of the brake lever, showcasing its sleek design and the SRAM Apex branding.
3.3 Reach Adjustment
The brake lever features adjustable reach, allowing you to customize the distance from the handlebar to the lever blade for optimal comfort and control, accommodating various hand sizes.
- Locate the reach adjustment screw on the lever body.
- Use an appropriate tool (e.g., hex key) to turn the screw, moving the lever blade closer to or further from the handlebar.
- Adjust until a comfortable and secure grip is achieved.
4. Operating Instructions
The SRAM Apex A1 hydraulic disc brake system provides powerful and modulated stopping performance.
- Braking Technique: Apply pressure to the lever smoothly and progressively. Avoid sudden, forceful braking, especially in wet or loose conditions, to prevent loss of traction.
- Modulation: Hydraulic brakes offer excellent modulation, allowing fine control over braking power. Practice feathering the brake lever to control speed without locking the wheel.
- Lever Feel: The lever should feel firm and consistent throughout its travel. A spongy or inconsistent lever feel may indicate air in the system or a need for bleeding.
5. Maintenance
Regular maintenance ensures the longevity and optimal performance of your SRAM Apex A1 brake system.
5.1 Brake Pad Inspection and Replacement
The system uses steel-backed organic brake pads. Inspect pads regularly for wear. Replace pads when the friction material is worn down to 0.5mm or less, or if they are contaminated with oil or grease.
- Remove the wheel.
- Remove the pad retention pin.
- Slide out the old pads and insert new ones, ensuring the spring is correctly positioned.
- Reinstall the retention pin and wheel.
- Bed in new pads according to SRAM's recommendations for optimal performance.
5.2 Hydraulic Fluid (DOT Fluid)
This brake system uses DOT hydraulic fluid. DOT fluid is hygroscopic (absorbs moisture), which can degrade performance over time. It is recommended to bleed the system and replace the fluid annually, or more frequently if riding in humid conditions or if performance degrades.
- Always use fresh DOT 4 or DOT 5.1 fluid. Never mix DOT fluids with mineral oil.
- Refer to SRAM's official bleeding procedure for detailed instructions.
5.3 Cleaning and General Care
- Clean the calipers and levers with mild soap and water. Avoid using harsh chemicals or solvents that can damage seals or finishes.
- Keep brake pads and rotors free from oil, grease, and other contaminants. Contaminated pads or rotors will significantly reduce braking performance.
- Periodically check all bolts for proper torque.
6. Troubleshooting
This section addresses common issues you might encounter with your hydraulic disc brake system.
| Problem | Possible Cause | Solution |
|---|---|---|
| Spongy or soft lever feel | Air in the hydraulic system; low fluid level. | Bleed the brake system according to SRAM's official instructions. Check for leaks. |
| Reduced braking power | Worn brake pads; contaminated pads/rotor; air in system; overheating. | Inspect and replace brake pads if worn. Clean or replace contaminated pads/rotor. Bleed system. Allow brakes to cool. |
| Brake noise (squealing, grinding) | Contaminated pads/rotor; misaligned caliper; worn pads; loose components. | Clean or replace contaminated pads/rotor. Realign caliper. Replace worn pads. Check all bolts for proper torque. |
| Lever not returning fully | Contaminated lever pivot; internal seal issue. | Clean and lubricate lever pivot. If issue persists, professional service may be required. |
If you are unable to resolve an issue, please consult a certified SRAM dealer or professional bicycle mechanic.
7. Specifications
| Model Name | 00.5018.226.000 |
| Brand | SRAM |
| Type | Hydraulic Disc Brake & Lever (Left/Rear) |
| Caliper Design | 2-Piston, Flat Mount |
| Caliper Material | Aluminum body, Phenolic plastic pistons |
| Brake Pads | Steel-backed Organic |
| Hydraulic Hose Length | 2000mm |
| Fluid Type | DOT (DOT 4 or DOT 5.1 recommended) |
| Lever Features | Adjustable Reach, Textured Hood |
| Connector Type | Stealth-a-majig |
| Item Weight | Approximately 1.22 Pounds (0.55 kg) |
| Color | Black (Multicolor finish) |
| Material | Alloy Steel, Aluminum (Handle) |
8. Warranty Information
This SRAM Apex A1 Hydraulic Disc Brake and Lever is covered by a Limited Warranty. For specific terms, conditions, and duration of the warranty, please refer to the official SRAM warranty policy available on their website or contact your authorized SRAM dealer. The warranty typically covers defects in materials and workmanship under normal use.
Keep your proof of purchase for warranty claims.
9. Support and Contact
For further assistance, technical support, or to locate an authorized service center, please visit the official SRAM website or contact your local SRAM dealer.
SRAM Official Website: www.sram.com
Always ensure you are using genuine SRAM replacement parts for optimal performance and to maintain warranty validity.
