Wilwood 120-14551 Forged Narrow Superlite Disc Brake Caliper - 6R

The Wilwood Forged Narrow Superlite 6R (FNSL6R) Disc Brake Caliper represents the latest evolution in high-performance braking technology. Engineered for extreme environments and demanding applications, this caliper combines big brake stopping power with an exceptionally lightweight design, starting at just 4.9 pounds.

Advanced Forged Construction:

Each caliper body is stress-flow forged from premium grade aluminum alloy billets using computer-generated solid modeling and FEA stress analysis. This forging process re-aligns the metal's internal grain structure to flow within the contour of the caliper body, eliminating stresses and interruptions that occur with traditional billet machining. The result is the strongest possible aluminum caliper body construction available.

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 slow heat transfer properties and superior corrosion resistance
• Compatible with optional Thermlock pistons for enhanced thermal barrier protection and reduced heat transfer
• SRS (Stainless Steel Rotor Saver) bridge plates eliminate bridge wear from pad gouging and extend caliper service life
• Spring-loaded SRS plates prevent pad rattle and dampen harmonic vibrations that cause brake squeal
• Two-piece bleed screws on each end with internal fluid crossovers protect against track debris damage
• High-temperature square-faced bore seals maximize sealing area and provide controlled piston retraction

Performance Benefits:

The differential bore piston design ensures consistent pad wear even under extreme thermal loads. Stainless steel pistons minimize heat transfer to the caliper body, seals, and brake fluid, reducing the risk of heat-induced pedal fade. The efficient thermal management translates to longer component service life and more consistent braking performance across a wide range of competition and high-performance street applications.

Compatible with the full range of Wilwood pad compounds, allowing precise tuning of brake response and heat management for any driving application.