Nissin M/CYL REP Kit F BRK 1/2

The Nissin Front Brake Master Cylinder Repair Kit provides the internal sealing components needed to rebuild a 1/2 inch bore Nissin front brake master cylinder. Nissin is a leading OEM supplier of braking components to major motorcycle manufacturers, making this kit a natural choice for restoring factory-specification performance.

Suited to riders and technicians undertaking a brake system overhaul, this kit allows a worn or leaking master cylinder to be returned to correct working order without the expense of replacing the full unit.

• Designed specifically for Nissin 1/2 inch bore front brake master cylinders
• Supports a complete internal rebuild of the master cylinder
• Nissin brand kit for OEM-compatible fitment and sealing performance
• Cost-effective alternative to full master cylinder replacement

Thoroughly clean the master cylinder housing and bore before fitting, removing all traces of old brake fluid, dirt and debris.
Inspect the master cylinder bore for scoring, pitting or corrosion prior to installation — a damaged bore will cause premature seal failure and the kit should not be fitted.
Lubricate all new rubber seals and cups with fresh, clean brake fluid of the type specified for your motorcycle; do not use grease or petroleum-based lubricants, which will damage rubber components.
Replace all seals and rubber components supplied in the kit; do not reuse old seals or mix new and old parts.
After reassembly, bleed the brake system fully to purge all air from the hydraulic circuit and confirm firm lever feel before returning the motorcycle to service.
Use only the DOT-rated brake fluid grade specified in your motorcycle's service manual; do not mix fluid types or brands.
After installation, pump the brake lever repeatedly and inspect all joints and seals for leaks before riding.
Replace brake fluid in accordance with your motorcycle manufacturer's service intervals, as moisture absorption degrades braking performance over time.