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Low Friction Oil Bath 10 Inch Hybrid Brake Rotor Kit
Low Friction Oil Bath 10 Inch Hybrid Brake Rotor Kit

Low Friction Oil Bath 10 Inch Hybrid Brake Rotor Kit

Stock Car, Front Right Position, Round Rotor Shape, 10 Inch Rotor Diameter, Vented Rotor Type

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Low Friction Oil Bath 10 Inch Hybrid Brake Rotor Kit
Low Friction Oil Bath 10 Inch Hybrid Brake Rotor Kit
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Part # 91031029
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Front Right
Rotor Shape:
Rotor Diameter:
10 Inch
Rotor Type:
Rotor Style:
Plain Face
Rotor Material Type:
Rotor Finish:
Rotor Thickness:
Bolt Pattern:
Dual: 5 on 5" | 4.75"
Stud Length:
Stud Diameter:
Thread Length:
Thread Pitch:
15.1 lbs.
Hardware Included:
MFG. Part #:
Sold in Quantity:


Reduce drag on your race car with this innovative kit from Speedway. The Oil Bath Brake Rotor uses straight 30wt oil to lubricate the wheel bearings instead of grease, which significantly reduces friction. Oil can be easily changed using the supplied tapped plug.

You get (1) oil bath 10" hybrid rotor with races installed, 5/8" course thread quick-start studs, and (1) special O-ring dust cap (each rotor sold individually). Pre-drilled holes include 5 on 4-3/4" and 5 on 5" bolt circle spacing. 

  • Less Friction
  • Less Heat
  • Less Maintenance
  • Less Mess



  1. Only for dirt track use, NOT asphalt.
  2. We have found no negative results in wheel bearing life when using oil as a lubricant rather than grease on dirt tracks. Just be sure to change the oil on a regular basis to extend bearing life.  
  3. To install special dust cap with O-ring do not use a hammer. The cap must be twisted and pushed on simultaneously using a clamp or vise.

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.


Includes rotor, dust cap, and dust cap o-ring. We suggest the use of 30WT oil in these rotors. Wheel mounting flange is .55'" thick.
Some parts are not legal for use in California or other states with similar laws/regulations

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What's In The Kit

Each kit from Speedway Motors is carefully packaged and delivered right to your door. Below is a list of all the items you should expect to receive when you order this kit. Some of these items may also be available for sale individually if you're here looking for replacement parts.
  • Low Friction Oil Bath 10 Inch Hybrid Brake Rotor
    Qty x 1
  • Cap Only - 910-31029
    Qty x 1
  • Replacement Dust Cap O-Ring
    Qty x 1

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Q & A

Videos & Articles
  • We get a lot of questions about brake kits so Tim gives a brief overview of disc brake setups.
  • If you're changing your brake pads before you hit your first race, it's important to burnish or bed-in your new pads. Check out our quick tech-tip on bedding brakes and how to minimize pad wear and get the best performance out of your brakes.
  • After getting the control arms and drop spindles installed last time, we are dying to see what it looks like on the ground. Today we are working with the Speedway Deluxe Disc Brake Kit. Josh and Joe are on a roll!

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