Superlite Rear Brake Kit ("The Really Big, Rear Brake Kit")

Superlite Rear Brake Kit ("The Really Big, Rear Brake Kit")

Built for Endurance and High-Horsepower Miatas

The ultimate solution for endurance racing and high-horsepower Miatas, this kit is engineered for serious performance. Featuring the Wilwood Superlite caliper and an 11.75” x 0.81” two-piece rotor, it offers exceptional thermal management, extended rotor and pad life.

Why Choose This Kit?

Say goodbye to leaky, sticky OE Miata rear calipers. Designed to dramatically reduce long-term consumable costs, this kit delivers unparalleled performance and longevity. With the right pad compound, rotor and pad life can exceed 60 hours of racing, making it as economical as it is effective.

• Rotor Size: The rotor rings are a standard size (11.75” x 0.81”) available from Wilwood, Coleman, Afco, and other manufacturers, ensuring easy replacements at an affordable cost.
• Lightweight Design: Despite its larger dimensions, the two-piece rotor and lightweight calipers keep the overall weight comparable to the smaller OE brake setup.

Pads in photos are not included but are available on our website.

Key Features

• 6061-T6 Aluminum Rotor Hat

  • Custom-designed with scalloped edges for weight savings and staggered mounting bosses for compatibility with both front and rear applications (pairs seamlessly with the BroFab 11.75” x 0.81” front brake kit).

• For racing use only:

  • This kit does not include an emergency brake function.
• Brake Bias Adjuster
  

• • Mounts to the rear subframe and enables precise rear bias ratio adjustments. Compatible with the OE brake bias valve and most aftermarket valves. Includes adjustment charts for various Miata models, offering ratios from slightly less than stock (90–93) to significantly increased rear bias.

• Extended Pad and Rotor Life

  • When paired with the appropriate pad compound, pad and rotor life can exceed 60 hours of endurance racing.

• Wide Pad Compatibility

  • Supports a variety of high-performance compounds in the 7420 Wilwood pad shape, such as:
    • Wilwood: BP-10, BP-20, BP-28, BP-30, BP-35, BP-40, BP-45, BP-Q, Polymatrix B and H
    • Porterfield: R-4, R4-E, R4-1, R4-S
    • Ferodo: DS2500, DS3000, DS3.12, DS1-11, DSUNO
    • Hawk: DTC-80, DTC-70, DTC-60, DTC-30, ER-1, HPS, HPS+, HPS 5.0, Black, HT-10
    • Pagid: RST1, RST3
    • PFC: 01, 11, 13, 39, 97
    • Raybestos: ST-43, ST-45, ST-47

• Wheel Fitment Notes

  • This kit requires 15x9" or larger rims. Some rims may need spacers. Tested wheels that fit without spacers include:
    • Konig Hexagon (15x10)
    • Konig Freeform (15x9.5)
    • Sparco (15x9)
    • Jongbloed (15x10)
  • Other wheels may fit, but these have been verified.

Kit Contents

• (2) Wilwood Superlite Calipers 
• (1) Completed Stainless Steel Braided Brake Line Set
• (1) Set of Fittings and Adapters for OE Hardlines
• (1) Wilwood Brake Bias Adjuster with Subframe Mounting Bracket
• (2) 6061-T6 Aluminum Rotor Hats
• (2) Wilwood 11.75” x 0.81” Rotor Rings with Hardware

The Ultimate Rear Brake Upgrade

Engineered to deliver unmatched braking performance, exceptional durability, and cost-effectiveness, the Superlite Rear Brake Kit is a game-changer for endurance racers and high-powered Miatas. Lightweight yet robust, this kit ensures your Miata is ready for even the most demanding race conditions.