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U.S.Order Line:

800.979.0122

(CST) 7am - 10pm

Race and Rod Tech Support

Mon-Fri 8am - 5pm

Canadian Order Line:

855.313.9180

International Order Line:

1.402.323.3200
Since 1952
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Speedway Cast Iron Scalloped Brake Rotor, 11.75 x .810 Inch

SAME DAY SHIPPING! Most orders ship within 24 hours.

Specs
Sold in Quantity:
Each
Finish:
Natural
Rotor Construction:
Vented
Rotor Diameter:
11.75
Rotor Hat Bolt Pattern:
8 x 7.00"
Material Type:
Cast Iron
Rotor Location:
Rear
Rotor Shape:
Scalloped
MFG. Part #:
940-31065
Drilled:
No
Slotted:
No
Rotor Thickness:
0.81
Weight:
5.58
Speedway Cast Iron Scalloped Brake Rotor, 11.75 x .810 Inch

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What's in the Box

Info

Speedways premium 32 Vane scalloped cast iron brake rotors weigh only 5.58 lbs.

  • Vented iron 
  • Bolt Circle: 8 x 7"
  • Threads:  Thru
  • Face: scalloped

Item Details

.81 x 11.75
8 x 7" B.C.

Notes

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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