The key to the superior performance of the GN6R comes from the extremely durable and efficient body design, with a hard anodized or optional Quick-Silver nickel plate finish. The most noteworthy feature of this caliper design is the forging. Each body is stress-flow forged from premium grade aluminum alloy billets. Stress-flow forging re-aligns the metal's internal grain structure to flow within the contour of the caliper body. This process eliminates the stresses and interruptions to the internal grain structure that occur when machining a straight block billet. Simply stated, there is no better way to build a stronger aluminum caliper body.

A unique six-piston differential bore configuration provides balanced loading for even pad wear in sustained high heat environments. The standard anodized GN6R calipers feature one-piece stainless steel pistons. Stainless is used for its slow heat transfer properties and high resistance to corrosion. The Quick-Silver finish calipers are upgraded with Wilwood's exclusive Thermlock pistons. This multi-part piston design creates a highly efficient thermal barrier to further reduce heat transfer from the pads to caliper body, seals, and fluid. Cooler temperatures translate to longer service life and less chance for heat induced pedal fade.

Features:

• Forged aluminum black anodized body with stainless steel pistons
• Upgraded GN6R Quick-Silver models feature exclusive Thermolock pistons
• Compatible with rotors 1.25"-1.38" wide and 12.19"-13.06" rotor diameter
• Choose from .80" or .99" body width
• Bolt-in center bridge allows easy pad access
• Use w/radial mount bracket kits for replacement of all 3.50" or 6.00" center lug mount GN calipers