Wilwood Front Superlite 6R Brake Kit for Mazda MX-5 Miata (2006–2015), Black Calipers, GT Slotted 12.88-Inch Rotors

This Wilwood front conversion gives the listed 2006–2015 Mazda MX-5 Miata applications black Superlite 6R calipers and 12.88-inch GT slotted rotors. The six-piston calipers work with separate aluminum-hat rotor assemblies on the compatible factory hubs. The installation document includes the application-specific front flex-line set alongside BP-10 pads and mounting hardware for this selected package. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines for motorsport, street-performance, and specialized applications.

Technical Details

• Manufacturer part number: 140-12907
• Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hat).
• Calipers: Forged Narrow Superlite 6R; 6-piston; Black Powder Coat.
• Piston bore dimensions: 1.38, 1.12, 1.12 inches; stainless pistons. Caliper mounting: radial.
• Included pad compound: BP-10.
• Rotors: 12.88-inch outside diameter × 1.10-inch width; GT Slotted; Spec-37 Iron; Black Electro Coat surface finish.
• Rotor ventilation: 48 curved vanes.
• Rotor hats: Big Brake Hat - Flared Bell; Aluminum; Black E-Coat.
• Wheel bolt circles: 5 x 4.53 inches.
• Included: paired calipers, pads, rotors and mounting hardware, caliper mounting brackets, rotor hats.
• Application-specific hydraulic flex lines included.
• Conditional wheel minimum: 17 inches. Compare the complete wheel-clearance diagram with both barrel and spoke dimensions.
• Supplied wheel spacers are required for stock-wheel clearance. Use the DS956 clearance drawing with its specified spacer installed; account for the resulting wheel position.

Fitment & Compatibility

Confirm the MX-5 Miata production year and trim, including the separate 2015 entries. Compare the original hub register and lug pattern with the hats before installing the conversion brackets. Follow the instructions to establish rotor position and caliper centering. The wheel must clear the full template at its barrel and spokes; a nominal 17-inch diameter alone is insufficient. Route the included hoses without strain through steering travel and verify balance with the rear brake system.

Match the individual year, model, submodel and equipment conditions in the fitment table below.

Wilwood installation documents: Installation instructions.

PMB Performance has over 20 years of brake-system experience. Contact us with the vehicle and installed hardware details for help confirming the complete setup.

Manufacturer warning, brake pads only: WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.