Pro-Lite Vented Brake Rotor, 11.75x.81 Inch w/Grand National Seal

#9100975

Pro-Lite Vented Brake Rotor, 11.75x.81 Inch w/Grand National Seal

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Cast from premium grade, long grain carbon iron which exhibits long wear, high thermal stability, and excellent resistance to distortion
32 vane design provides superior heat management and long service life
The straight vane design allows the same rotor to be used on both left or right hand sides

$45.99

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Product Summary

Universal Fit, Rear Position, Round Rotor Shape

Cast from premium grade, long grain carbon iron which exhibits long wear, high thermal stability, and excellent resistance to distortion
32 vane design provides superior heat management and long service life
The straight vane design allows the same rotor to be used on both left or right hand sides
8 on 7" mounting bolt circle is commonly used on brake hats and Grand National hubs
Replacement seal is for the Winters Grand National hubs

Comes as a Kit

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Key Specs

Position	Rear
Rotor Shape	Round
Rotor Diameter	11.75 Inch
Rotor Type	Vented
Rotor Style	Plain Face

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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 9100975 Details

Brake Rotors

Every 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 .810"
Outside Diameter: 11.75"
# Holes: 8
Bolt Circle: 7"
Thread: Thru
Weight: 8.00 lbs

IMCA Approved.

Hub Seal

Replacement hub seals for Winters Grand National hubs. Quality parts for your Winters hub assemblies. Perfect for the off season rebuild or for keeping quality spares in your trailer.

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Charts

Pro-Lite Rotor Application Chart (GIF)

Guides & Documents

Brake Rotors Guide/Document (91031906)

Speedway Motors 9100975 Specifications

KEY SPECS
MFG. Part #	9100975
Brand	Speedway Motors
Position	Rear
Rotor Shape	Round
Rotor Diameter	11.75 Inch
Rotor Type	Vented
Rotor Style	Plain Face
Rotor Material Type	Cast Iron

GENERAL
Rotor Finish	Natural
Rotor Thickness	.81"
Bolt Pattern	8 on 7"
Vane Count	32 Straight Vane
Weight	8 lbs.
Sold in Quantity	Kit
Notes	IMCA Approved