Cast Iron Drilled Scalloped Brake Rotor, 11.75 x .810 Inch

#94031068

Cast Iron Drilled Scalloped Brake Rotor, 11.75 x .810 Inch

Name: Cast Iron Drilled Scalloped Brake Rotor, 11.75 x .810 Inch
Brand: Speedway Motors
SKU: 94031068
Price: 77.99 USD
Availability: InStock
Rating: 4.8 (10 reviews)

10 Reviews

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Scalloped iron brake rotors designed for sprints, late models, modifieds, and competition applications in low to medium temperature ranges
These rotors are lightweight and suitable for open-wheel cars, such as sprints and modifieds
Weighs only 5.07 lbs

Outside Diameter / Thickness:

11.75" x 0.810"

12.19" x 0.810"11.75" x 1.25"

Type:

Drilled

Solid

$77.99

/each

In Stock

Quantity

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Product Summary

Rear Position, Scalloped Rotor Shape, Solid Rotor Type

Scalloped iron brake rotors designed for sprints, late models, modifieds, and competition applications in low to medium temperature ranges
These rotors are lightweight and suitable for open-wheel cars, such as sprints and modifieds
Weighs only 5.07 lbs
Scalloped configuration removes up to three pounds (about 33% of the rotor mass) for weight reduction
Vented castings provide increased cooling capacity compared to machined steel plate rotors

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Key Specs

Rotor Diameter	11.75 Inch
Rotor Style	Drilled
Rotor Material Type	Cast Iron
Rotor Thickness	0.81"
Rotor Hat Bolt Pattern	8 x 7.00"

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Installation Details

Installation Tips

Proper Break-In Procedure for Steel or Cast Iron Rotors

New steel/iron rotors should be bedded in before being used in racing conditions. Proper bedding will prepare the rotor surface, prolong the rotor's life, and make it more resistant to thermal checking or cracking under severe braking conditions. The following procedures should be performed when bedding in both steel and cast iron rotors. It is best to bed in a new rotor using a used set of pads, preferably ones which will not create heat rapidly. Generating heat too rapidly will thermal shock the rotors. Likewise, when bedding in a new set of brake pads it is best to perform the process on a used rotor. This new/used bedding process permits controlled bedding of each individual component.

Make sure rotor surfaces are free from oils, grease, and brake fluid. Run vehicle up to a moderate speed and make several medium deceleration stops to heat up the rotor slowly. This will help reduce the chance of thermal shock caused by uneven heating of the rotor. Pull into the pits and allow the rotor to cool to ambient air temperature. Care should be taken not to ride the brakes into the pits as this may hot spot the rotor causing premature wear to the surface or structural damage.

Speedway Motors 94031068 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

Thickness: 0.81"
O.D.: 11.75"
Bolt Circle: 8 x 7"
Threads: Thru
Weight: 5.07 lbs
Face: drilled & scalloped

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

Speedway Motors 94031068 Specifications

KEY SPECS
MFG. Part #	94031068
Brand	Speedway Motors
Rotor Diameter	11.75 Inch
Rotor Style	Drilled
Rotor Material Type	Cast Iron
Rotor Thickness	0.81"
Rotor Hat Bolt Pattern	8 x 7.00"

GENERAL
Position	Rear
Rotor Shape	Scalloped
Rotor Type	Solid
Rotor Finish	Plain
Weight	5.07 lbs.
Sold in Quantity	Each

Ratings & Reviews

4.8

10 Reviews

Overall Assessment

Customer reviews consistently praise the high quality and excellent construction of our rotors. Notably, users appreciated a noticeable difference in acceleration due to reduced rotating mass. This advantage isn't commonly disclosed, giving our customers an edge. Our rotors are also reported to maintain a cooler temperature and provide smooth, consistent braking without vibrations. Users deem them an excellent replacement choice for rear rotors in various car models, especially because they require no changes to calipers or spindles. They have proven reliable, adding to their practicality for customers seeking a lightweight, quality rotor. Repeat purchases further vouch for their superiority over competitors.

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4.8

10 reviews

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I buy this product again and again.

5.0

a year ago

KenR

East Moline IL

Verified

They are reliable and do the job perfectly.

Would Recommend

Great quality rotors.

5.0

3 years ago

Jimk

Desmoines

Verified

Rotors stay cooler than solid rotors I replaced

Great Product and Fast Service

4.0

4 years ago

Kent

Oneonta, NY

Verified

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

Would Recommend

Top Quality - Acceleration Difference was Noticeable!

5.0

4 years ago

Tom W.

Kennesaw, GA

Verified

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.

Would Recommend

Smooth and Fast

5.0

5 years ago

Tom W.

Kennesaw, GA

Verified

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.

Would Recommend

Great product at a great price

5.0

5 years ago

Adam the Animal

Selkirk, Manitoba

Verified

Great product

Would Recommend

The products were as described and came on time.

5.0

7 years ago

pjjj01

Shelton, WA

Verified

The products are going on a winged sprint car

Would Recommend

Great quality

5.0

9 years ago

Mike

Emmaus

Verified

Great quality

Would Recommend

Quality product

4.0

10 years ago

Richard

Yadkinville NC

Verified

Thanks for the quick service

Would Recommend

Quality rotor

5.0

12 years ago

Sprint85

Blooming Prairie, MN 55917, USA

Verified

Nice, light high quality rear brake rotor. Have bought 2 already, no problems at all. Will buy again.

Would Recommend

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