StopTech® Trophy Big Brake Kits® are bred for racing.

They include forged, lightweight StopTech® STR calipers, floating, slotted AeroRotors, stainless steel brake lines, and race engineered caliper brackets. Easily identifiable by their unique shape and finish, StopTech® Trophy Big Brake Kit® components feature a MIL-spec hard-anodizing on the Trophy STR calipers and AeroHats® that is impervious to color change or fading at extreme race temperatures.

StopTech® Trophy Kits feature ultra-high performance STR lightweight forged calipers in six-piston, four-piston or two-piston configurations. Based on the highly praised StopTech® ST-60, ST-40, and ST-22 calipers, STR calipers feature the same metallurgy and design, but are engineered to provide up to a 20-percent reduction in weight without sacrificing stiffness or performance.

There are two types of StopTech® Trophy Big Brake Kits® available - one for the track and the other for the street. 


All StopTech® Trophy Big Brake Kits include:

  • Patented StopTech® AeroRotors® for optimized airflow

  • Patented, billet 7075 aluminum AeroHats® to further increase airflow

  • Forged StopTech® STR calipers with patented bolt-in bridge for ultimate stiffness

  • StopTech® stainless steel brake lines

  • Race engineered caliper brackets

  • Hard-anodized finish on calipers and hats that resists fading and discoloration

Differences Between Track and Street Kits

StopTech® Trophy Race Big Brake Kits®

Designed specifically for motorsports competition and dedicated track cars. Unique to the Trophy Race Big Brake System is full-floating mounting hardware, which eliminates pad knock-back, and the elimination of the dust boots in the caliper. Together, these technologies optimize the brake system to provide improved performance and consistent pedal feedback under the unique combination of hard cornering and braking found on the track. Trophy Race Big Brake Kits are the ultimate in racing performance, with numerous wins and championships in World Challenge, Grand-Am, NASA and SCCA racing.

StopTech® Trophy Sport Big Brake Kits®

Intended for ultra-high performance street use. They are designed for street driven production vehicles. The Trophy Sport Big Brake Kits use the same STR calipers, AeroRotors® and AeroHats® found in the full-race Trophy Kits, but add silicone dust boots for extended service intervals and anti-rattle rotor mounting hardware for quieter operation. They also include StopTech® Sport Brake Pads for high performance street and occasional track use.  Trophy Sport Big Brake Kits are the ultimate street braking system.

Any StopTech® Brake Kit can be ordered as a Trophy Race or Trophy Sport(street) kit simply by specifying it on your order.

StopTech® Big Brake Kit AeroRotors® are available in these sizes, depending on application (in millimeters):


StopTech® AeroRotors® incorporate several design innovations to improve rotor airflow, cooling and heat capacity. The ability to absorb and dissipate heat is essential to brake system performance. The uniquely designed vanes inside the AeroRotors® optimize airflow through the disc. This improved directional design minimizes turbulence and flows more air than any other rotor tested. Better Airflow means better cooling and less fade.

AeroRotors® are available either drilled or slotted for better dissipation of pad material and heat. An optional anti-corrosion gold zinc coating benefits customers who live in colder climates, where snow and road salt are commonly encountered. Zinc coating also benefits customers who prefer no visible surface rust on the vanes and outer circumference of their rotors.

Larger wheels are typically needed when installing a Big Brake Kit. StopTech® provides a large database of wheel fitment templates to ensure proper fit with your aftermarket wheels.



Access the wheel fitment templates through the quick look-up

StopTech® STR Calipers

  • Stiffest aftermarket caliper available gives a consistent firm pedal

  • Fully machined and lightweight for track action

  • Hard anodized finish that is impervious to color change or fading

  • Fully forged and extremely stiff for firmer brake pedal feel

  • Meticulously engineered 2-piece design reduces flex

  • Patented, removable center bridge further resists yaw(flex)

  • Carefully selected piston sizes for precise torque output

StopTech® AeroRotors®

StopTech® has developed several design innovations to improve rotor airflow. The patented 2-piece AeroRotors push more air thanks to curved, airfoil-shaped vanes and an air channel that widens at the trailing edge of the vanes. 

  • Specifically engineered and patented AeroVanes® for optimum cooling

  • Patented, billet 7075 aluminum AeroHats® for improved airflow

  • Full-floating mounting hardware to eliminate pad knock-back

  • Optimized to provide even performance and consistent feedback

  • Hard-anodized hats are impervious to color change or fading

Hard Anodized 6061-T6 Billet aluminum Mounting Brackets with Stainless Steel Studs

Application-specific hardware that is stronger than most competitors, with studs instead of the more commonly used bolts and hard anodized aluminum billet composition.

  • Hard anodized billet aluminum mounting brackets

  • Stainless steel studs secured with set screws for strength and durability

  • Fully machined aluminum or steel that is precise and strong

  • Application specific design for precise and proper fitment

  • All necessary hardware for easy installation

StopTech® Stainless Steel Brake Lines

Braided stainless steel lines reduce system compliance and improve  brake pedal feel and modulation. StopTech's Stainless Steel Brake Lines are D.O.T. compliant and designed to fit your vehicle.

  • Stainless steel braiding for lower compliance and extra protection    

  • Provides quicker response

  • Firmer pedal feel

  • A variety of fittings for hundreds of applications

  • All necessary brackets and fasteners for easy installation

  • Better brake modulation

  • D.O.T. compliant

StopTech® AeroHats®

StopTech aluminum AeroHats  are lighter, and feature directional stand-offs between the rotor and mounting hat that increase airflow to the (hotter) outside face of the rotor by over 50 percent

  • Patented design with directional stand offs between the rotor and mounting bell

  • Increases airflow by 50%-100% over traditional 2-piece designs

  • Increased airflow reduces the temperature difference between the inside and outside rotor faces

  • Results in less distortion and better performance compared to other fully floating designs

  • Outer pad wear is reduced

Required Pre-Purchase Fitment Check: Vehicle-specific wheel fitment templates for StopTech® Big Brake Kits

To help identify whether your existing wheels will fit over a StopTech® big brake kit, download the wheel fitment template for your vehicle and follow the instructions to verify clearance before you purchase. While wheel clearance is completely dependent on the diameter, offset and spoke design of your wheels, a general guideline is that StopTech® kits usually require the following:

  • 328mm rotor (12.9") - minimum 17" wheel

  • 332mm rotor (13.1") - minimum 17" wheel

  • 355mm rotor (14") - minimum 18" wheel

  • 380mm rotor (15") - minimum 19" wheel


Access the wheel fitment templates through the quick look-up