Brand: BUCKLOS | Model: HB-323
This manual provides detailed instructions for the installation, operation, and maintenance of your BUCKLOS HB-323 Hydraulic Disc Brakes Set. Designed for mountain bikes, road bikes, e-bikes, scooters, folding bikes, and BMX, this brake set features dual-piston braking for enhanced stopping power and an ergonomic three-finger brake lever for comfortable use. Please read this manual thoroughly before installation and use to ensure proper function and safety.
Before beginning installation, ensure all components are present:
Install the brake levers onto your 22.2 mm handlebars. Loosen the mounting screw on the brake lever, position it correctly on the handlebar, and then tighten the screw to secure it. Adjust the angle for comfortable reach and operation.
Attach the 160mm stainless steel rotors to your wheel hubs using the provided adapter screws. Then, install the hydraulic calipers to the A/B pillar of your bike frame. The brake set is pre-bled with mineral oil, making it ready for immediate use after installation.
Important Safety Note:
While the brakes are pre-bled, if you experience spongy braking or need to shorten/lengthen the brake lines, bleeding may be required. The following video demonstrates a bleeding process for similar hydraulic brakes. Always refer to professional guidance if unsure.
Video 1: Demonstration of hydraulic brake bleeding process. This video shows the process of bleeding hydraulic brakes, which involves removing air bubbles from the brake fluid system to restore proper brake lever feel and stopping power. It illustrates connecting a syringe to the brake lever's bleed port and manipulating the lever to push fluid through the system.
The BUCKLOS HB-323 features a dual-piston braking system, which increases the friction area and ensures even stress distribution on the rotors, preventing deformation and providing consistent stopping power. The ergonomically designed three-finger brake levers offer comfortable and efficient braking.
This hydraulic brake set is suitable for a wide range of bicycles, including mountain bikes, road bikes, e-bikes, scooters, folding bikes, and BMX. Ensure the brake lines are of sufficient length for your specific bicycle model.
Regularly inspect your brake system for any signs of wear, damage, or oil leakage. Keep the rotors and brake pads clean and free from grease or oil, which can severely reduce braking performance. Clean with a dedicated disc brake cleaner if necessary.
The semi-metallic brake pads are designed for durability and high-temperature resistance. Replace brake pads when they show significant wear (typically when the pad material is less than 0.5mm thick). Use the provided brake pad alignment tool during replacement to ensure correct positioning.
The hydraulic system uses mineral oil. If the brake lever feels spongy or braking performance degrades, the system may need to be bled to remove air bubbles. Refer to the bleeding video in the Setup section for guidance or consult a professional bike mechanic.
| Problem | Possible Cause | Solution |
|---|---|---|
| Brake lever feels spongy | Air in the hydraulic system | Bleed the brake system (refer to Video 1). |
| Brakes are rubbing | Caliper misalignment or bent rotor | Realign the caliper using the alignment tool. Check rotor for bends and true if necessary. |
| Reduced braking power | Contaminated brake pads/rotor, worn pads, or air in system | Clean pads/rotor with disc brake cleaner. Replace worn pads. Bleed the system. |
| Oil leakage from brake lever or caliper | Damaged seal or improper assembly | Inspect connections and seals. If damage is found, contact customer support for replacement parts or professional repair. |
For any questions or issues regarding your BUCKLOS HB-323 Hydraulic Disc Brakes Set, please contact our professional after-sales service personnel. We aim to provide detailed responses within 24 hours. If you encounter problems with received products, please contact us. We may request photos to understand the situation, but we are committed to addressing your concerns promptly.
The product comes with a return policy allowing for refund or replacement within 30 days of purchase. Please retain your proof of purchase for warranty claims. This warranty covers manufacturing defects and material faults under normal use. It does not cover damage due to improper installation, misuse, neglect, accidents, or unauthorized modifications.
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