Wilwood Rear 11.50-inch Drilled Black Rotor for Harley-Davidson 1984–1999

This black rear rotor pairs drilled stainless construction with the larger rear attachment-hole specification. It belongs to the early 1.99-inch-register Harley-Davidson configuration and should be selected against the rear brake's actual 11.50-inch geometry. The broader Wilwood range covers calipers, brake rotors, master cylinders, valves, fittings and brake lines. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California, designing and manufacturing disc brake systems for motorsport, street-performance and specialized applications. Individual components must be coordinated with the complete braking system.

Technical Details

• Manufacturer part number: 160-10663-BK
• Friction dimensions: 11.50 inches diameter x 0.20 inches wide
• Construction: Stainless
• Surface treatment: Drilled; Black electrocoat
• Cooling layout: Solid, unvented
• Mounting direction: Non-directional
• Supplied preparation: Balanced: no; factory burnished: no
• Rotor-to-hat/hub attachment circle: 5 x 3.25 inches
• Attachment hole size or thread: 0.422 inches
• Center registration: 1.99 inches
• Approximate weight: 4.50 lb
• Quantity: one motorcycle rotor; mounting fasteners and pads are separate

Fitment & Compatibility

For the specified 1984–1999 Harley-Davidson rear brake applications using this rotor's OE dimensions. Confirm diameter, thickness, center register and attachment-hole size on the actual bike. The overlapping 2008 application ranges include different rotor sizes, so model year alone is insufficient. Hardware, pads and any additional rotor are ordered separately.

Manufacturer reference: Wilwood rotor specifications, Motorcycle rotor dimensions

Choosing a rotor involves more than its outside diameter. PMB Performance's 20-plus years of brake and parts experience can help you check the component against your existing assembly.