PERFORMANCE BRAKE ROTOR – High-quality cast iron rotor designed for racing and performance disc brake systems, providing consistent braking performance and dependable stopping power., DRILLED COOLING DESIGN – Cross-drilled surface helps improve heat dissipation and airflow during braking, reducing brake fade and maintaining braking efficiency under demanding conditions., SCALLOPED LIGHTWEIGHT EDGE – Scalloped outer design reduces rotating weight while maintaining rotor strength, helping improve overall braking response and vehicle performance., OPTIMIZED DIMENSIONS – Rotor measures 11.75 inches in diameter with a .810 inch thickness, making it suitable for many performance and racing brake setups requiring this common rotor size., DURABLE CAST IRON BUILD – Manufactured from durable cast ir
Cast Iron Drilled Scalloped Brake Rotor, 11.75 x .810 Inch Speedway Motors
Cast Iron Drilled Scalloped Brake Rotor, 11.75 x .810 Inch
Sku # 94031068
Mfr. Part # 94031068
Condition
New
Brand
Speedway Motors
Sold
Each
Details

These scalloped iron brake rotors provide effective lightweight options for sprints, late models, modifieds, and other competition applications that race in low to medium temperature ranges. Steel rotors are typically found in lighter weight open wheel cars such as sprints and modifieds.  Speedways premium 11.75" x .810" drilled scalloped brake rotor weighs only 5.07 lbs.

  • Scallop configuration provides greatest weight reduction on a vented straight vane iron rotor
  • Scallop machining removes as much as three pounds, or nearly 33% of the rotor mass
  • Vented castings provide increased cooling capacity over machined steel plate rotors
  • Improved structural durability over drilled rotor designs
  • Vented iron 
  • Inboard mounted (Sprints)

Note: Suitable for Light Dirt Racing applications. Scalloped Rotors are unsafe for street use.


Item Details

.810 x 11.75
8 x 7" B.C.
Specs
Position
Rear
Rotor Shape
Scalloped
Rotor Diameter
11.75 Inch
Rotor Type
Solid
Rotor Style
Drilled
Rotor Material Type
Cast Iron
Rotor Finish
Plain
Rotor Thickness
0.81"
Rotor Hat Bolt Pattern
8 x 7.00"
Weight
5.07 lbs.
MFG. Part #
94031068
Sold in Quantity
Each
Reviews

I buy this product again and again.

Rated
Product Rating
by KenR on November 15, 2024

Summary: They are reliable and do the job perfectly.

Yes, I recommend this product.

Great quality rotors.

Rated
Product Rating
by Jimk on April 30, 2023

Summary: Rotors stay cooler than solid rotors I replaced

Great Product and Fast Service

Rated
Product Rating
by Kent on August 18, 2022

Summary: Good rear rotor replacement for our 305 sprint car. Driver liked the feel and no problems.

Yes, I recommend this product.

Top Quality - Acceleration Difference was Noticeable!

Rated
Product Rating
by Tom W. on June 09, 2022

Summary: These rotors fit properly. They are constructed well. The machining is excellent. The braking was smooth and consistent with no pulsation. I used them on the rear to reduce the rotating mass. Removing nearly 6 pounds from the rotating mass was noticeable. The acceleration rate with the same gear ratio set me back in the seat and made me grin. I would not mention this to my competitors because I don't want them to know this cheap and easy speed secret. Those running up front probably already know! You don't have to change your calipers or spindles from the 1.25 when you use pad spacers.

Yes, I recommend this product.

Smooth and Fast

Rated
Product Rating
by Tom W. on August 16, 2021

Summary: I replaced a set of 1.25 rotors on a limited dirt late model with these .81 rotors. They stop just as well and are vibration free. The reduction in rotating mass was very noticeable in the acceleration rate with a reduction of 0.2 seconds in lap times on a 3/8 mile track.

Yes, I recommend this product.

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About
Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.