Introduction
This manual provides detailed instructions for the proper installation, operation, and maintenance of your Tektro RL720 Cross Brake Lever Set. Designed for use on bicycles, these levers offer an additional braking position, enhancing control and safety. Please read all instructions carefully before installation and use.
Safety Information
- Always ensure all components are securely fastened before riding.
- Regularly inspect brake levers and cables for wear or damage.
- Improper installation or maintenance can lead to brake failure, resulting in serious injury. If unsure, consult a professional bicycle mechanic.
- Wear appropriate safety gear, including a helmet, when cycling.
Setup and Installation
The Tektro RL720 Cross Brake Levers are designed for handlebars with a 24.0-mm clamp diameter. Ensure your handlebars are compatible before proceeding.
Tools Required:
- Hex key set
- Cable cutters
- Cable crimps
Installation Steps:
- Positioning: Determine the desired location for the cross brake levers on your handlebars. They are typically installed on the flat section of drop handlebars or on bullhorn bars, allowing for braking from an upright position.
- Mounting the Clamp: Loosen the clamp bolt on each lever. Carefully open the clamp and position it around the handlebar. Ensure the lever body is oriented correctly for comfortable reach.
- Securing the Levers: Tighten the clamp bolt using a hex key. Do not overtighten, but ensure the lever is secure and does not rotate freely on the handlebar.
- Cable Routing: Route your brake cable from the main brake levers (if applicable) or directly from the brake caliper/cantilever through the cross brake lever body. The RL720 is designed to be an inline lever, meaning the cable passes through it.
- Cable Connection: Secure the brake cable to the main brake system according to the brake manufacturer's instructions. Ensure proper tension and adjust the cable barrel adjuster on the RL720 for fine-tuning.
- Final Check: Test the brake function thoroughly before riding. Ensure both the main brake levers and the cross brake levers engage the brakes effectively and release smoothly.
Image: Tektro RL720 Cross Brake Lever Set (24.0-mm Clamp). This image displays the pair of brake levers, highlighting their design and clamp mechanism.
Operating Instructions
The Tektro RL720 Cross Brake Levers provide an additional point of braking control, typically when riding with hands on the top of the handlebars. To operate, simply squeeze the lever towards the handlebar. The amount of force applied will determine the braking power.
Adjusting Brake Feel:
The levers feature built-in adjuster barrels. These can be rotated to fine-tune the brake cable tension, allowing you to adjust the lever's reach and the brake's responsiveness. Turn clockwise to reduce tension (increase lever play) and counter-clockwise to increase tension (reduce lever play).
Maintenance
- Regular Cleaning: Keep the levers clean from dirt and grime. Use a damp cloth and mild soap if necessary.
- Cable Inspection: Periodically check brake cables for fraying, rust, or kinks. Replace damaged cables immediately.
- Pivot Points: Apply a small amount of light lubricant to the lever pivot points to ensure smooth operation.
- Tightness Check: Regularly check that the clamp bolts are secure and that the levers do not shift during use.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Brakes feel spongy or weak. | Loose cable, worn brake pads, or air in hydraulic system (if applicable to main brakes). | Adjust cable tension using the barrel adjuster. Inspect and replace brake pads. For hydraulic systems, consult a mechanic. |
| Lever does not return fully. | Stiff cable, dirty pivot, or damaged return spring. | Lubricate cable and pivot points. Check for cable kinks. Replace if spring is damaged. |
| Lever slips on handlebar. | Clamp bolt is loose. | Tighten the clamp bolt securely. |
Specifications
- Model: RL720
- Clamp Diameter: 24.0-mm
- Material: Aluminum (Lever and Bracket)
- Color: Black/Silver
- Weight: Approximately 0.15 Kilograms (0.35 pounds per pair)
- Dimensions: 7.4"L x 3.9"W (approximate)
- Compatibility: Road bike brake systems (caliper, cantilever, V-brake compatible)
- Included Components: Installation Hardware
- Manufacturer Part Number: 127B15AA
- UPC: 749666709475, 749666708690
Warranty and Support
Tektro products are manufactured to high standards and are covered by a limited warranty against defects in materials and workmanship. For specific warranty details, please refer to the warranty card included with your product or visit the official Tektro website.
For technical support, replacement parts, or further assistance, please contact your retailer or visit the TEKTRO Store on Amazon or the official TEKTRO website.