Wilwood 120-11779 FNSL6R Forged Narrow Superlite 6R Brake Caliper Left Hand

The Wilwood Forged Narrow Superlite 6R (FNSL6R) represents the latest evolution in high-performance disc brake caliper technology. Designed for extreme braking environments, this left-hand caliper delivers big brake stopping power while maintaining a lightweight, compact profile suitable for a broad range of performance applications.

Advanced Forged Construction:

Starting at just 4.9 pounds, each FNSL6R caliper body is stress-flow forged from premium grade aluminum alloy billets. This specialized forging process re-aligns the metal's internal grain structure to flow within the contour of the caliper body, eliminating the stresses and grain interruptions that occur in traditional machined billet construction. The result is exceptional strength and durability that cannot be matched by conventional manufacturing methods.

Key Features:

• Six-piston differential bore configuration provides balanced pad loading for even wear in sustained high-heat conditions
• One-piece stainless steel pistons offer superior heat resistance and corrosion protection
• Compatible with optional Thermlock pistons for enhanced thermal barrier performance
• SRS (Stainless Rotor Sleeves) bridge plates eliminate bridge wear from pad gouging and extend caliper service life
• Spring-loaded SRS plates eliminate pad rattle and dampen vibrations that cause brake squeal
• Two-piece bleed screws on each end with internal fluid crossovers for protection against track debris
• High-temperature square-faced bore seals maximize sealing area and provide controlled piston retraction
• Anodized finish for enhanced corrosion resistance and appearance

The FNSL6R design incorporates computer-generated solid modeling and FEA stress analysis to optimize both strength and thermal efficiency. Compatible with the full range of Wilwood pad compounds to match specific brake response and heat range requirements for competition and high-performance street applications.