Wilwood 120-11780 Forged Narrow Superlite 6R Right Hand Brake Caliper

The Wilwood Forged Narrow Superlite 6R (FNSL6R) caliper represents the latest evolution in high-performance brake caliper technology, combining big brake stopping power with lightweight construction for demanding racing and sports driving applications. This right-hand caliper integrates advanced engineering with proven durability to deliver consistent performance in extreme braking environments.

Advanced Forged Construction:

Each FNSL6R caliper body is stress-flow forged from premium grade aluminum alloy billets, a process that realigns the metal's internal grain structure to flow within the contour of the caliper body. This forging method eliminates internal stresses and grain structure interruptions that occur with traditional billet machining, creating an exceptionally strong yet lightweight caliper that weighs just 4.9 pounds. The design is optimized through computer-generated solid modeling and FEA stress analysis to ensure maximum strength where it's needed most.

Six-Piston Differential Bore Design:

The unique six-piston configuration features differential bore sizing that provides balanced pad loading for even wear distribution, even during sustained high-heat braking. Standard calipers come equipped with one-piece stainless steel pistons chosen for their slow heat transfer properties and superior corrosion resistance. Optional Thermlock pistons are available as an upgrade, featuring a multi-part design that creates a thermal barrier to further reduce heat transfer from the pads to the caliper body, seals, and brake fluid.

Key Features:

• Stress-flow forged aluminum construction weighing 4.9 pounds
• Six-piston differential bore configuration for balanced pad wear
• One-piece stainless steel pistons with slow heat transfer properties
• SRS bridge plates eliminate bridge wear and prevent pad rattle
• Two-piece bleed screws on each end for protected bleeding
• Internal fluid crossovers prevent debris damage
• High-temperature square-faced bore seals provide controlled piston retraction
• Compatible with full range of Wilwood brake pad compounds
• Anodized finish for corrosion resistance

Enhanced Service Life:

Each FNSL6R caliper includes SRS (Stainless Rigid Slide) bridge plates that eliminate all bridge wear caused by pad gouging, significantly extending caliper service life. The spring-loaded action of the SRS plates also dampens harmonic vibrations that contribute to brake squeal while eliminating pad rattle. High-temperature square-faced bore seals maximize the sealing area while providing controlled piston retraction on brake release, contributing to consistent pedal feel and reduced drag.

The FNSL6R is designed for professional racing teams and serious enthusiasts who demand maximum braking performance with minimal weight penalty. Compatible with a wide range of Wilwood pad compounds to match specific heat ranges and brake response characteristics for any competition or high-performance street application.