1. Introduction
This manual provides detailed instructions for the safe and effective replacement of XOD hydraulic disc brake pads. These high-performance sintered brake pads are designed for XOD 2-Piston Hydraulic Brake Systems, ensuring extraordinary quality and reliable braking. Please read all instructions carefully before proceeding with installation or maintenance.

2. Safety Warnings
- Secure the vehicle/equipment on a stable stand (e.g., invert and fix bicycles) before operation.
- Always wear safety goggles to prevent brake fluid splashes.
- Never use oil-contaminated tools on brake pads/rotors.
3. Tools and Materials Required
- Piston reset tool (or wide-jaw flat pliers)
- Anhydrous alcohol + Lint-free cloth
- New brake pads (Model-matched, e.g., XOD-H880-H800 compatible pads like ZQT-ZDP-001, ZQT-ZDP-003, ZQT-ZDP-004)
- Hex keys (for caliper retaining pins)
4. Installation / Replacement Procedure
Follow these steps for proper brake pad replacement:
- Release Hydraulic Pressure: Squeeze the brake lever approximately 10 times until the pistons are fully extended.
- Remove Old Brake Pads:
- Unscrew the caliper retaining pins (typically two) with hex keys.
- Remove the spring clip upward.
- Slide the worn pads horizontally out of the caliper slots.
- Clean & Inspect:
- Thoroughly wipe caliper internals with anhydrous alcohol.
- Check pistons: If cracked or oil-seeping, return for service.
- Install New Pads:
- Insert the new pads into the caliper tracks, ensuring the friction material faces the rotor.
- Reinstall the spring clip (convex side outward).
- Secure the retaining pins.
- Reset Pistons:
- Place the piston reset tool between the pistons.
- Slowly rotate the tool until the pistons fully retract.
- Critical: Apply even pressure to avoid misalignment.
- Restore Braking Function:
- Pump the brake lever 15-20 times until it feels firm.
- Test: Spin the wheel while lightly squeezing the lever; verify even rotor contact.

5. Key Notes and Post-Installation Checks
- Weak braking post-installation? Perform bleeding (requires a bleed kit).
- Bed-in new pads: Avoid hard braking for the first 50km; use moderate stops to properly bed-in the new pads.
- Contaminated rotor? Spray alcohol on the rotor and brake at high speed to burn off any oil residue.
- Abnormal noise/vibration? Prioritize a rotor truing check.
6. Maintenance
- Inspect pad thickness every 6 months or 2000km, whichever comes first.
- Replace brake pads when the pad thickness is less than 1mm.
7. Troubleshooting
| Problem | Possible Cause / Solution |
|---|---|
| Weak braking after installation | Air in the hydraulic system. Perform a brake bleed (requires a bleed kit). |
| Squealing or reduced braking power | Contaminated rotor or pads. Clean rotor with anhydrous alcohol and bed-in new pads. If pads are heavily contaminated, replace them. |
| Abnormal noise or vibration during braking | Rotor may be untrue or damaged. Prioritize a rotor truing check. |
| Pads wearing quickly | Aggressive braking habits or improper bed-in procedure. Ensure proper bed-in and inspect for rotor issues. |
8. Specifications
| Feature | Detail |
|---|---|
| Product Type | Scooter Brakes (Disc Brake Pads) |
| Compatible Brake Systems | XOD 2-Piston Hydraulic Brake Systems (e.g., XD-H880, XD-H800) |
| Pad Model Numbers | ZQT-ZDP-001, ZQT-ZDP-001 X5, ZQT-ZDP-003, ZQT-ZDP-004 |
| Material Types | Sintered (Plumbago/Carbon Ceramic), High Copper Base Metal |
| Asbestos Content | No Asbestos Compound |
| High-Concerned Chemical | None |
| Origin | Mainland China |
| Package Dimensions (L x W x H) | 16 cm x 10 cm x 7 cm |
| Package Weight | 0.384 kg |
| Customization | Yes |



9. User Tips
- Material Choice: Different pad materials (e.g., sintered, high copper base metal) offer varying performance characteristics. Sintered pads generally provide strong braking in all conditions and good durability, while high copper base metal pads might offer a different feel. Choose the material that best suits your riding style and conditions.
- Regular Checks: Beyond pad thickness, regularly check your brake fluid levels and the condition of your rotors for optimal performance and safety.
10. Support and Warranty
For further assistance, technical support, or warranty inquiries, please refer to the official XOD Brake Store or contact your retailer. Always ensure you are using genuine XOD replacement parts for optimal performance and safety.
A detailed user manual in PDF format is also available for download: User Manual (PDF)
