Description
Brembo XA8.30.13/14 4-Piston Rear Big Brake Kit
Brembo Racing Division — Motorsport Grade
Upgrade your rear braking system with the Brembo XA8.30.13/14. This 4-piston billet monobloc caliper delivers exceptional stopping power with even pad pressure distribution across all pistons, paired with RH rotors and Endless MX72 / Winmax W615 for a complete bolt-on big brake kit solution.
Complete Kit Includes
| Calipers | Brembo XA8.30.13/14 — 4-Piston, Billet monobloc (pair) |
| Brake Discs | RH 2-piece floating rotors (355x32mm / 370x32mm / 380x32mm) |
| Brake Pads | Endless MX72 / Winmax W615 |
| Brake Lines | Goodridge stainless steel braided brake lines |
| Mounting Hardware | AME CNC-machined 7075-T6 aluminium bells & vehicle-specific brackets |
Caliper Specifications
| Caliper Model | Brembo XA8.30.13/14 |
| Position | Rear |
| Pistons | 4-Piston (Differential bore: 28/30mm) |
| Total Piston Area | 26.5 cm² |
| Weight (per caliper, no pads) | 1.6 kg |
| Construction | Billet monobloc |
| Material | Aluminum |
| Finish | Hard Anodized |
| Mounting | Radial |
| Compatible Disc Range | Up to 278mm |
| Pad Shape Code | B10 |
Engineering & Technology
At just 1.6 kg, the XA8.30 is one of Brembo’s lightest racing calipers. Its compact 120mm mounting centers and billet monobloc construction make it the perfect rear caliper upgrade, delivering precise braking modulation with minimal unsprung weight.
Performance Upgrade
- Fixed Caliper Design: Eliminates flex and provides consistent pad-to-disc contact across all pistons, unlike factory sliding calipers
- Differential Bore Pistons: Progressively sized pistons distribute clamping force evenly, eliminating tapered pad wear
- Increased Disc Diameter: Larger swept area dramatically improves heat dissipation and braking torque
- Reduced Unsprung Weight: Lightweight aluminum construction improves suspension response and handling
Compatible Pad Compounds
Available pad options:
- Endless MX72
- Winmax W615
Brembo pad shape code: B10 — use this code when ordering replacement pads.
RH Disc & Pad Options
Brake Discs:
- RH — 2-piece floating rotor with CNC-machined 7075-T6 aluminium bell
Brake Pads:
- Endless MX72
- Winmax W615
Custom Brake Solutions
At AME MOTORSPORT, we design and manufacture adapters for virtually every vehicle make and model. All our brake kits are engineered for direct bolt-on fitment across a wide range of vehicles.
- AME CNC-machined 7075-T6 aluminium disc bells & vehicle-specific mounting brackets
- Steel brackets available on request for heavy-duty applications
- Goodridge stainless steel braided brake lines
- All necessary mounting hardware included
Brake discs can be customised with square-slot pattern and full-floating conversion. Please contact us for consultation.
Need a different disc size, pad compound, or custom bracket solution? Contact us to discuss your specific requirements.
Warranty
| Brake Calipers | 1-year warranty against manufacturing defects |
| Brake Discs & Pads | Wear components — not covered under warranty |
| Defect Coverage | Includes cracking, material separation, or other failures without external force. Normal wear and damage from misuse are excluded. |
Related Products & Guides
- RH Brake Pads for Brembo XA8301314
- RH Brake Rotors
- All Brake Pads
- All Brake Rotors
- Brembo Big Brake Kit Collection
Lead Time: Approximately 5–14 business days.
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