BREMBO RACING FRONT LEFT BRAKE CALIPER BLACK TITANIUM WITH RED LOGO P4-40C

Hey Boss! The name Brembo is globally synonymous with ultimate reliability and stopping power. If you are building a vintage-inspired Café Racer but demand the aggressive, modern braking performance of a superbike, the Brembo P4.30-34 (20516578) is your missing puzzle piece.

Positioned in Brembo’s premium Upgrade Line, the P4.30-34 is a 2-piece mechanical masterpiece meticulously CNC-machined from a solid block of billet aluminum. Its stealthy Black finish, accented by a striking Red Brembo logo, delivers an incredibly clean, powerful aesthetic that perfectly synchronizes with top-tier front suspension setups. This is a premium component tailored for riders who pursue uncompromising quality and exclusive individuality.

Mounting Position Note: SKU 20516578 is designed for the Front Left. If you need the specular (opposite) caliper for the right side, order SKU 20516579.

• OE-equivalent: Meets and exceeds strict original equipment safety standards.

• Brembo quality: Unrivaled Italian mechanical precision.

• Safety & Performance: Massive braking force with perfect control.

• Exclusive style: Stunning CNC Billet aesthetics with a Red logo.

• Racing inspired: Born from racetrack technology.

• Sports driving: Total confidence at high speeds.

⚙️ TECHNICAL SPECIFICATIONS

📦 Inside the authentic Brembo box, you will find:

• 1x Brembo P4.30-34 Billet Caliper - Black (20516578) - Front Left

• 1x Set of Premium Brake Pads (Pre-installed)

• Replacement bolts & Spacers (if included in the kit)

• Genuine Brembo Installation Manual

🚀 OUTSTANDING TECHNOLOGY & PERFORMANCE

1. Left/Right Configuration & Pairing: SKU 20516578 is a Front Left caliper. Brembo uses the term "specular" for its mirror-image counterpart (20516579 - Front Right). They share the same specs, but the fluid inlet and bleeder valve are reversed to properly route the brake lines on the fork.

• Single front disc build: Choose 1 SKU (Left or Right depending on your fork).

• Dual front disc build: You MUST order both 20516578 (Left) + 20516579 (Right).

2. CNC Billet 2-Piece Construction: Unlike the cast aluminum used in the Prime Line, the P4.30-34 is CNC-milled from a solid block of aerospace-grade billet aluminum. This process guarantees higher structural rigidity, more uniform caliper walls, and dramatically better resistance to high hydraulic pressure. Your brake lever will remain firm and responsive, never feeling spongy even under extreme riding conditions.

3. 4 Asymmetrical Pistons (30-34mm) – Unmatched Control: Four aluminum pistons clamp the brake pads from both sides. Brembo utilizes an asymmetrical setup: 30mm pistons on the leading edge and 34mm on the trailing edge. This intelligently distributes the braking force across the length of the pad, entirely eliminating uneven pad wear while delivering an incredibly linear, predictable, and powerful bite.

📊 Quick Comparison: Upgrade Line vs. Prime Line

🛠️ PRO INSTALLATION & SAFETY WARNINGS

Brembo's official procedure consists of 35 steps. Here are the absolute critical points:

• Removal: Secure the bike. Drain all fluid via the bleeder valve into a container. Disconnect the fluid line, remove the retaining pin, and take out the old pads. Unbolt the old caliper.

• Installation: Degrease the rotor (use SE 47 solvent). Mount the new P4.30-34 using the provided bolts and spacers (if included). Do not fully tighten yet. Reconnect the brake line, torqueing the banjo bolt union to 17–20 Nm.

• Bleeding: Fill with fresh DOT fluid. Cycle the bleeding process: Open bleeder → Squeeze lever firmly → Close bleeder → Release lever. Repeat until the lever is rock-hard. Torque the bleeder valve to 12–16 Nm, and the main mounting bolts to your vehicle manufacturer's spec (typically around 46 Nm).

🚨 CRITICAL SAFETY WARNINGS:

1. NEVER release the brake lever while the bleeder valve is open, or air will rush back into the hydraulic circuit!

2. Protect your paint: Brake fluid destroys paint instantly. Wipe off any spills immediately with absorbent paper. Avoid direct skin/eye contact.

3. Protect the Billet Finish: Always use the exact size socket/wrench. A slipping tool will aggressively scratch the premium CNC black surface.

4. Keep grease and lubricants completely away from the friction surfaces of the disc and pads.

🏍️ COMPATIBILITY NOTE FOR CUSTOM BUILDS

Because the Brembo P4.30-34 (20516578) belongs to the Upgrade Line dedicated to Custom Café Racer builds, it utilizes a Radial Mount system.

• This SKU is NOT listed in the standard plug-and-play OE-replacement Brembo Application Database.

• Before ordering for your custom project, you or your builder MUST confirm:

  1. The fork's radial mounting pitch (Is it 100mm or 108mm?).

  2. The front brake disc diameter.

  3. The disc's friction surface height (Fascia freno) must be between 32-34mm.

  4. Do you need a single caliper (Left/Right) or a pair (Left + Right)?

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