Brembo GP4-LM Endurance Caliper, Left, 108mm Billet Monobloc
Maximize endurance racing performance with the Brembo GP4-LM left caliper. Billet Monobloc, P4 32/36, 108mm radial mount, optimized for narrow band discs.
The Brembo GP4-LM Endurance Caliper is the pinnacle of braking technology, meticulously engineered for the demanding world of endurance and high-level circuit racing. This left-side, Billet Monobloc caliper is a direct result of Brembo's decades of experience in MotoGP, offering unrivaled rigidity, consistency, and heat management over extended periods. Constructed from a single block of high-grade aluminum alloy (Billet Monobloc), the caliper body ensures zero flex even under extreme thermal and mechanical stress, translating directly into precise brake feel and repeatable stopping power. It features a sophisticated P4 32/36 piston configuration (two pistons of $32 \text{mm}$ and two of $36 \text{mm}$) to guarantee optimal and uniform pad wear. Specifically designed with a narrow body profile and a $108 \text{mm}$ radial mount, this caliper is perfectly suited for use with narrow band brake discs, making it the ultimate choice for professional race teams seeking the lightest and most efficient package for long-haul performance. Pads are sold separately.
Best Uses
1. Professional Endurance Racing (e.g., Le Mans, EWC, 8-Hour Races): Engineered for sustained, high-temperature performance.
2. Superbike & Supersport Racing: Ideal for track-only motorcycles where every gram and millimeter of performance counts.
3. High-Level Track Day Enthusiasts: For riders demanding absolute consistency and fade resistance from their braking system.
4. Motorcycles requiring a $108 \text{mm}$ Radial Mount Caliper: A premium upgrade for compatible sportbikes.
Features
1. Billet Monobloc Construction: Machined from a single block of high-grade aluminum for maximum rigidity and mechanical stability.
2. $108 \text{mm}$ Radial Mount Spacing: Standard mounting for premium, track-focused European and Japanese superbikes.
3. Endurance-Specific Piston Configuration: Utilizes a P4 32/36 setup to ensure balanced pressure distribution and maximum pad effectiveness.
4. Optimized for Narrow Band Discs: Designed with a slim profile for a lightweight assembly, making it compatible with narrow band disc rotors typically used in racing.
5. High-Thermal Resistance Design: Specialized internal fluid passages and high-quality seals are built to withstand the extreme heat cycles of endurance racing.
Benefits
1. Unwavering Consistency: Monobloc design virtually eliminates flex, providing the same precise lever feel from the first lap to the last.
2. Superior Heat Dissipation: The billet material and open architecture effectively manage and dissipate heat, drastically reducing the risk of brake fade during long stints.
3. Enhanced Durability: Engineered for the rigors of competitive racing, offering exceptional longevity and reliability over standard road calipers.
4. Optimal Braking Modulation: The precise machining and piston size combination allow for unparalleled control and feel, enabling riders to brake deeper into corners.
5. Weight Reduction: The Billet Monobloc and narrow profile deliver a significant unsprung weight reduction compared to standard cast calipers, improving handling and agility.