Wilwood Ultralite Scalloped Rotor, 11.75 x 1.25 Inches, Light Dirt Use

SKU: 160-8343

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Product details

This scalloped Ultralite rotor combines an 11.75-inch diameter with a full 1.25-inch vented section. Its listed weight is 5.80 lb, and the 8.34-inch far-side inside diameter distinguishes it from another scalloped ring with the same outside size. A rotor must suit both the mechanical installation and the rest of the braking system. Wilwood brings that system perspective to its calipers, rotors, master cylinders, valves, fittings and lines, designing and manufacturing disc brake systems for motorsport, street performance and specialized applications. Bill Wood founded the Camarillo, California company in 1977.

Technical Details

  • Manufacturer part number: 160-8343
  • Quantity: One rotor; not an axle pair
  • Outside diameter: 11.75 inches
  • Nominal thickness: 1.25 inches
  • Rotor material: Iron
  • Construction: 32 vanes
  • Friction surface: Plain Face
  • Finish: Plain
  • Approximate weight: 5.80 lb
  • Factory burnished: No
  • Dynamically balanced: No
  • Installation orientation: Non-directional
  • Rotor attachment pattern: 8 x 7.00 inches
  • Rotor mounting hole / thread: 0.326 inches
  • Registration / lug inside diameter: 6.38 inches
  • Far-side inside diameter: 8.34 inches
  • Intended use and restrictions: For light dirt racing. Scalloped rotors are unsafe for street use and can fail if misused.

The hat or hub, fasteners, caliper and pads are not included.

Fitment & Compatibility

Restricted to appropriate light dirt-racing assemblies; unsafe for street use and capable of failure if misused. Confirm the eight-on-7.00-inch mount and exact inner-clearance requirement.

Wilwood product specifications · Rotor dimension diagram

With over 20 years of brake experience, PMB Performance can help you compare the installed assembly with this rotor’s dimensions before ordering.