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Product details
This scalloped Ultralite rotor serves the specified dirt Sprint/Midget brake arrangement in a compact 10.50-inch diameter. Its 0.75-inch vented section uses 30 vanes, with a six-hole flange and a listed weight of 5.20 lb. Bill Wood established Wilwood in 1977. From Camarillo, California, the company designs and manufactures disc brake systems covering motorsport, street performance and specialized applications, with calipers, rotors, master cylinders, valves, fittings and lines in its product range. This rotor should be selected with the mounting arrangement, friction compound and hydraulic system in mind.
Technical Details
- Manufacturer part number: 160-8427
- Quantity: One rotor; not an axle pair
- Outside diameter: 10.50 inches
- Nominal thickness: 0.75 inches
- Rotor material: Iron
- Construction: 30 vanes
- Friction surface: Plain Face
- Finish: Plain
- Approximate weight: 5.20 lb
- Factory burnished: No
- Dynamically balanced: No
- Installation orientation: Non-directional
- Rotor attachment pattern: 6 x 5.50 inches
- Rotor mounting hole / thread: 0.326 inches
- Registration / lug inside diameter: 4.94 inches
- Far-side inside diameter: 7.30 inches
- Intended use and restrictions: For dirt Sprint and Midget racing; not for street use.
The hat or hub, fasteners, caliper and pads are not included.
Fitment & Compatibility
Not for street use. Confirm the racing package, 4.94-inch register and 7.30-inch far-side inside diameter; these clearances differ from the round-perimeter rotor of the same nominal size.
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.
