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Product details
The 12.19-inch version of the scalloped Ultralite ring provides a larger pad sweep while retaining a 0.81-inch section. Its 32-vane iron construction and plain faces are intended for light dirt racing, not general-purpose road braking. Since its founding by Bill Wood in 1977, Wilwood has designed and manufactured disc brake systems from its base in Camarillo, California. Its products span rotors, calipers, master cylinders, valves, fittings and lines for motorsport, street performance and specialized applications. Brake selection should account for the whole installation, including mounting dimensions, friction materials and hydraulic balance.
Technical Details
- Manufacturer part number: 160-8136
- Quantity: One rotor; not an axle pair
- Outside diameter: 12.19 inches
- Nominal thickness: 0.81 inches
- Rotor material: Iron
- Construction: 32 vanes
- Friction surface: Plain Face
- Finish: Plain
- Approximate weight: 5.90 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: 8.56 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
Use only where the racing assembly specifies this scalloped design. Check the 6.38-inch register and 8.56-inch far-side clearance; misuse can result in rotor failure.
Wilwood product specifications · Rotor dimension diagram
Put PMB Performance’s 20-plus years of brake knowledge to work when matching this part to your build. We can help review the dimensions and application requirements.
