Introduzione
This manual provides essential instructions for the proper installation, operation, and maintenance of your TEKTRO CR720 Canti Brakes. Designed for bicycles, these cantilever brakes feature high leverage forged aluminum arms and dual linear springs with micro-tension adjusters, offering reliable stopping power and modulation. Please read this manual thoroughly before installation and use to ensure safety and optimal performance.
Image: TEKTRO CR720 Canti Brakes, showcasing the silver and black design with forged aluminum arms.
Informazioni sulla sicurezza
Always ensure all components are securely fastened and correctly adjusted before riding. Improper installation or adjustment can lead to brake failure, resulting in serious injury. Regularly inspect brake pads for wear and replace them when necessary. Consult a professional bicycle mechanic if you are unsure about any installation or adjustment procedures.
Configurazione e installazione
The TEKTRO CR720 Canti Brakes are designed for easy installation, but proper setup is crucial for performance and safety.
Strumenti necessari:
- Hex wrench set (typically 5mm, 6mm)
- Tagliacavi
- Pinze
- Brake cable grease
Fasi di installazione:
- Mount Brake Arms: Attach the brake arms to the cantilever bosses on your bicycle frame or fork. Ensure the spring is correctly seated in the boss hole.
- Install Brake Pads: Secure the brake pads to the brake arms. Adjust their position so they align with the rim braking surface and are slightly toed-in (front edge of the pad touches the rim slightly before the rear edge).
- Route Brake Cable: Route the main brake cable from your brake lever through the cable housing and into the cable hanger.
- Connect Straddle Cable: Attach the straddle cable to both brake arms and connect it to the main brake cable using the cable hanger. Adjust the straddle cable height to achieve optimal leverage and clearance. A lower straddle cable provides more power, while a higher one offers more modulation.
- Regolare la tensione del cavo: Secure the main brake cable to the brake arm. Adjust the cable tension using the barrel adjuster on the brake lever or the brake arm itself, ensuring proper pad clearance from the rim.
- Center Brake Arms: Use the micro-tension adjusters (spring tension screws) on each brake arm to center the pads relative to the rim. Each screw adjusts the spring tension for its respective arm.
- Controllo finale: Squeeze the brake lever firmly multiple times to seat the cable and pads. Re-check all adjustments and ensure no parts interfere with wheel rotation.
Nota: The CR720 features dual linear springs with micro-tension adjusters for precise centering. High leverage forged aluminum arms contribute to increased braking power.
Istruzioni per l'uso
Once properly installed and adjusted, operating your TEKTRO CR720 Canti Brakes is straightforward.
- Frenata: Apply pressure to the brake levers to engage the brakes. Apply both front and rear brakes simultaneously for controlled stopping.
- Modulazione: The CR720 brakes offer good modulation, allowing you to control braking force precisely. Practice braking in a safe area to familiarize yourself with their feel.
- Rilascio rapido: To remove a wheel, you may need to disengage the straddle cable from one of the brake arms or fully open the brake caliper if your levers have a quick-release mechanism. The CR720 design typically requires releasing the straddle cable.
Manutenzione
Regular maintenance ensures the longevity and safe operation of your brakes.
- Usura delle pastiglie dei freni: Inspect brake pads regularly for wear. Replace pads when the wear indicators are no longer visible or when the pad material is thin. Worn pads reduce braking performance and can damage rims.
- Ispezione dei cavi: Check brake cables and housing for fraying, kinks, or corrosion. Replace damaged cables and housing promptly. Lubricate cables periodically for smooth operation.
- Punti cardine: Keep the brake arm pivot points clean and lightly lubricated to ensure smooth movement.
- Pulizia: Clean brake arms and pads regularly to remove dirt and grime, which can affect braking performance. Avoid getting grease or oil on the brake pads or rim braking surfaces.
- Controllo di regolazione: Periodically check brake adjustments, including pad alignment, cable tension, and arm centering.
Risoluzione dei problemi
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Debole potenza frenante | Worn brake pads, loose cable tension, contaminated pads/rims, incorrect straddle cable height. | Replace pads, adjust cable tension, clean pads/rims, adjust straddle cable height. |
| Stridore dei freni | Pads not toed-in, contaminated pads/rims, loose brake arms. | Adjust pad toe-in, clean pads/rims, ensure brake arms are secure. Consider upgrading to Kool Stop salmon pads for improved performance and reduced squeal. |
| Brakes Rubbing Rim | Brake arms off-center, too much cable tension, bent rim. | Adjust micro-tension screws to center arms, reduce cable tension, true wheel if rim is bent. |
| Spongy Lever Feel | Stretched cable, worn housing, excessive cable friction. | Replace cable and housing, lubricate cable. |
Specifiche
- Marca: TEKTRO
- Modello: CR720
- Numero parte: 126CR720AS
- Tipo di freno: A sbalzo
- Materiale del braccio: Alluminio forgiato
- molle: Dual Linear Springs with Micro-Tension Adjusters
- Colore: Argento
- Peso dell'articolo: Approximately 0.01 Ounces (Note: This weight may be a data entry error and typically refers to a single small component, not the full brake set.)
- Dimensioni dell'articolo (LxWxH): 7.75 x 4 x 2.25 pollici
- Primo disponibile: 27 settembre 2008
Garanzia e supporto
For specific warranty information regarding your TEKTRO CR720 Canti Brakes, please refer to the documentation included with your purchase or visit the official TEKTRO website. TEKTRO products are generally covered by a manufacturer's warranty against defects in materials and workmanship.
For technical support, spare parts, or further assistance, please contact TEKTRO customer service through their official channels. You can often find contact information on the TEKTRO websito o tramite il tuo rivenditore autorizzato.
Official TEKTRO Websito: www.tektro.com