Pro-Lite Vented Brake Rotor, 11.75 x 1.25 Inch

#91031905

Pro-Lite Vented Brake Rotor, 11.75 x 1.25 Inch

Name: Pro-Lite Vented Brake Rotor, 11.75 x 1.25 Inch
Brand: Speedway Motors
SKU: 91031905
Price: 39.99 USD
Availability: InStock
Rating: 4.9 (9 reviews)

9 Reviews

2 Questions

34 vane
7" 8 hole bolt circle
Thru thread

Outside Diameter / Thickness:

11.75" x 1.25"

11.75" x 0.810"12.19" x 0.810"11.75" x 0.810" (Pair)

$39.99

/each

In Stock

Quantity

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Product Summary

Rear Position, Round Rotor Shape, Vented Rotor Type

34 vane
7" 8 hole bolt circle
Thru thread

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Key Specs

Rotor Diameter	11.75 Inch
Rotor Style	Plain Face
Rotor Material Type	Cast Iron
Rotor Thickness	1.25"
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.

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Speedway Motors 91031905 Details

Every brake rotor is cast from premium grade, long grain carbon iron which exhibits long wear, high thermal stability, and excellent resistance to distortion in high heat. Modern foundry and machining techniques hold close tolerances on face and vane thickness. Combining the correct face thickness with a 32 vane casting provides superior heat management and long service life with low rotating and unsprung weight. The straight vane design also makes it possible to use the same rotor on left or right hand mounting locations.

Thickness: GM 1.25"
Outside Diameter: 11.75"
# Holes: 8
Bolt Circle: 7"
Thread: Thru
Weight: 8.70 lbs

IMCA Approved.

Charts

Pro-Lite Rotor Application Chart (GIF)

Guides & Documents

Brake Rotors Technical Information (91031905)

CA Prop 65

Speedway Motors 91031905 Specifications

KEY SPECS
MFG. Part #	91031905
Brand	Speedway Motors
Rotor Diameter	11.75 Inch
Rotor Style	Plain Face
Rotor Material Type	Cast Iron
Rotor Thickness	1.25"
Rotor Hat Bolt Pattern	8 x 7.00"

GENERAL
Position	Rear
Rotor Shape	Round
Rotor Type	Vented
Rotor Finish	Plain
Weight	8.7 lbs.
Sold in Quantity	Each
Notes	IMCA approved.

Ratings & Reviews

4.9

9 Reviews

Overall Assessment

Customers commend the product for its optimal size, practicality, and fitness for use in various models, especially dirt late models. Its quality equates to more expensive ones, offering excellent fit and finish at half the price, making it a highly recommended rotor replacement. These 2 piece rotors outpace competitors due to their value for money and effective performance.

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4.9

9 reviews

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Bolt on rotor used with floating hub

5.0

a year ago

I like beer

Alabama

Verified

Used for mock-up with floater hub. I wanted something cheaper for that reason. Slotted rotors will be installed down the road.

Would Recommend

Yes, I would buy this again

5.0

a year ago

Flirtswithdirt

Iowa

Verified

Works as it should

Would Recommend

For a moderate weight or light car they are perfect

5.0

a year ago

Chris

Lynchburg, VA

Verified

These go weekend(s) for the champcar guys. Even at a weekend per, they are really stable and great $ compared to standard rotors.

Would Recommend

As advised

5.0

2 years ago

West tn

Verified

Works good

Would Recommend

My first experience with 2 piece rotors

5.0

3 years ago

Aminal

Tulsa Oklahoma

Verified

Nice size to fit my needs

I would buy this again

5.0

4 years ago

Dirtcar95d

Kenna wv

Verified

Used on my dirt late model

Would Recommend

I'll buy these again!

5.0

5 years ago

Danny Vermin

NW PA

Verified

These are a great replacement rotor for my Dirt Late Model.

Would Recommend

Just as nice 1/2 the price

5.0

7 years ago

Heath

Stroudsburg pa

Verified

Fit and finish just as good as expensive ones

Would Recommend

I would recommend this

4.0

9 years ago

Mac

Elkton Va 22827

Verified

Used with hats for brake

Showing 9 of 9 reviews

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