Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Shop Open Wheel Brakes & Hubs At Speedway Motors

Speedway Motors has the brake components you need for the rigors of open wheel racing. We carry top quality rotors and calipers for Sprints, Mini Sprints, and Midgets, as well as lightweight aluminum hubs to mount your brakes. Our complete assortment of brake pads will help you dial in your brakes for track conditions. Choose from a great selection of master cylinders and high temp racing brake fluid as well. Trust Speedway Motors with all your sprint car braking needs!

"Open Wheel, Disc Brakes and Accessories" Page 1 of 14

  • 2 Piece Aluminum Inboard Clamp
    $189.99
    2 Piece Aluminum Inboard Clamp
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    Clamps to Winters axle. Made for easy install of a inboard break system.

     

    • 7" 8- rotor bolt pattern. 

     

  • Speedway 338 Medium Double Quick Change Brake Pad
    Speedway 338 Medium Double Quick Change Brake Pad
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    Double Quick-Change pads are compatible with our Wilwood Forged Dynalite and Billet Dynalite calipers.

    Pads are sold each. (Will need 2 per caliper.)

    Tech Tip:  Only use full metallic pads on coated rotors.

    Brake Pad Brand Guide (Link)

    Learn how to properly Bed-In your brake pads by reading our tech article.  Bedding-In Brake Pad Procedure.

     

  • Brake Line Guard
    $9.99
    $12.99
    Brake Line Guard
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                This brake line guard for the Dynalite Single brake caliper is designed to mount off one of the two caliper mounting bolts. With this guard in place, it will help prevent a leaking or broken line from those unfriendly big chunks of mud or rocks.
            
  • Rotor-Hat Bolt Set
    $3.99
    Rotor-Hat Bolt Set
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                Ultralight, 5/16-24 thread. Set of 8. With self-locking nuts.
            
  • Wilwood 130-2655 Forged Dynalite O-Ring Seal Kit, 1.75 Inch
    Wilwood 130-2655 Forged Dynalite O-Ring Seal Kit, 1.75 Inch
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    Replacement parts for Wilwood Forged Dynalite calipers.

  • HRP 8125S Inboard Caliper Dogbone Retainer Kit
    HRP 8125S Inboard Caliper Dogbone Retainer Kit
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    This simple kit puts one dogbone under the caliper mounting bolts and the second fits over the bolt heads, keeping them from turning.

    For 11/16" head nuts. 

  • Hex Brake Rotor Mounts, 1.05 Inch
    Hex Brake Rotor Mounts, 1.05 Inch
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                  Screws and spacers for mounting rotors to your sprint hubs.   
            
  • Even-Flow Caliper Line Kit
    $34.99
    Even-Flow Caliper Line Kit
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    This kit equalizes brake pressure to each side of your inboard calipers. That gives you even pad wear and a more consistent pedal. 

    For calipers with a 1/8" npt port in each side of caliper.

    AN 3 inlet.  

  • Wilwood 150-8850 Poly-D 10 Double Quick Change Brake Pad
    Wilwood 150-8850 Poly-D 10 Double Quick Change Brake Pad
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    Double Quick-Change pads are compatible with our Wilwood Forged Dynalite and Billet Dynalite calipers.

    • Medium friction, low to medium temperarture range.
    • Good cold torque response.
    • Low to moderate wear rate

    Pads are sold each. (Will need 2 per caliper.)

    Tech Tip:  Only use full metallic pads on coated rotors.

    Brake Pad Brochure (PDF) 

    Brake Pad Brand Guide (Link)

    Learn how to properly Bed-In your brake pads by reading our tech article.  Bedding-In Brake Pad Procedure.

    8353991 Instructions (PDF)  

  • AFCO 7242-0092 F88i Series 1.25 Inch Caliper Bridge Bolt Kit
    AFCO 7242-0092 F88i Series 1.25 Inch Caliper Bridge Bolt Kit
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    Assorted Service Parts for F88i Series Calipers made by US Brake.

    Racer Note: Racing brake calipers, if properly maintained, can generally be used for several racing seasons. Frequent replacement of the caliper pistons and seals will increase caliper life and performance.

    Caliper Piston Tech Note (Link)

     

  • Rotor Bolt Set - 5/16 x 3/4, Bolt Only
    Rotor Bolt Set - 5/16 x 3/4, Bolt Only
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                Ultralight, 5/16-18 thread. Set of 8. With self-locking nuts.
            
  • Wilwood 270-9761 Dynamic Brake Clamp, 6 x 5-1/2 Inch Bolt Pattern
    Wilwood 270-9761 Dynamic Brake Clamp, 6 x 5-1/2 Inch Bolt Pattern
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    Wilwood's Sprint inboard hub & adapter kit provides a basis to bolt dynamic rotor rotor mounting of standard 6 x 5.50" bolt pattern rotors. Contains rotor adapter and dynamic rotor mounting bolt kit. Made from high strength aluminum. It provides a lightweight and strong solution for rotor mounting. Weighs only 1.2 lbs.

    • Sprint Inboard
    • Sprint / Midget use only 
    • Material: Aluminum
    • Finish: Black Anodize
    • Weight: 1.2
    • Rotor Mount Bolt Circle (in.): 8 x 3.35
    • Mount Type: Adapter-Dynamic
    • Adapter bolt Circle (s) 6-Bolt Type: 6 x 5.50 in.

    Will clamp to a Winters axle and dynamic mount rotors.

  • Wilwood 300-11789 Dynalite Single Caliper Rebuild Kit
    Wilwood 300-11789 Dynalite Single Caliper Rebuild Kit
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    Wilwood Dynalite Single brake caliper rebuild kit.

    Wilwood Dynalite Dimensions (Link)

  • Inboard Brake Clamp Spacer
    $19.99
    Inboard Brake Clamp Spacer
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                Black anodize brake clamp spacer for floating one-piece brake mount. 
            
  • Speedway 338 Medium Brake Pad
    Speedway 338 Medium Brake Pad
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    For Ultra Lite single piston floating caliper, Outlaw 1000 and Wilwood Dynalite Single.

    .450" thick, 1.97" long, 589 A Compound

    Tech Tip:  Only use full metallic pads on coated rotors.

    Brake Pad Brand Guide (Link)

    Learn how to properly Bed-In your brake pads by reading our tech article.  Bedding-In Brake Pad Procedure.

     

  • Wilwood 120-4062 Billet Dynalite Single Caliper, 3.25 In Mnt, 1.75/.38
    Wilwood 120-4062 Billet Dynalite Single Caliper, 3.25 In Mnt, 1.75/.38
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    Wilwood’s Billet Dynalite Single utilizes close tolerance design and manufacturing techniques which results in the most rigid, lightweight and attractive caliper in the evolution of the Dynalite Single Series. Starting at 1.58 pounds, the Billet Dynalite Single is perfect for compact high performance braking as required in Open Wheel, Drag, Modified, Kart, Motorcycle and Off Road applications.

    • Lightweight, compact design with two stainless steel 1-3/4" pistons
    • Use with .38" rotors
    • Has 3-1/4" mount centers
    • Uses "Single Quick-Change" style pads

    Wilwood Dynalite Dimensions (Link)

  • Speedway 156 Hard Brake Pad
    $8.99
    Speedway 156 Hard Brake Pad
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    For Ultra Lite single piston floating caliper, Outlaw 1000 and Wilwood Dynalite Single.

    .450" thick, 1.97" long, 589 A Compound

    Tech Tip:  Only use full metallic pads on coated rotors.

    Brake Pad Brand Guide (Link)

    Learn how to properly Bed-In your brake pads by reading our tech article.  Bedding-In Brake Pad Procedure.

     

  • Wilwood 120-9689 Dynapro Single Caliper, DPS, 3.75 Inch Mount 1.75/.38
    Wilwood 120-9689 Dynapro Single Caliper, DPS, 3.75 Inch Mount 1.75/.38
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    The Dyna Pro Single (DPS) billet caliper is the newest generation of calipers available as an upgrade or replacement for applications previously using the Dynalite Single (DLS) series. DPS calipers combine superior strength with performance enhancements to make these the best "Dyna" series calipers ever.

    The DPS is loaded with exclusive Wilwood performance enhancements. The calipers feature Quick-E-Clip pad retainers that support a 6812 type brake pad from the top. In addition to past pad service without caliper removal, the feature provides substantially stronger retention over the single Quick-Clip pin and 7012 type pads used in the previous DLS models.

    • Quick-E-Clip pad retainers supports brake pad from top
    • Heavy wall stainless steel pistons
    • Stainless steel SRS bridge plates eliminate pad rattle and dampen vibration
    • Internal fluid passages
    • Four corner bleed screws allow mounting in any front, rear, left, or right side position

    8351209689 Instructions (PDF)

     

  • Wilwood 160-0471 Ultralite 32 Vane Vented Iron Rotor, 11.75 x .810 In.
    Wilwood 160-0471 Ultralite 32 Vane Vented Iron Rotor, 11.75 x .810 In.
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    Every Wilwood brake rotor is cast from premium grade, long grain carbon iron. This material 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.

    Ultralite Rotor Application Chart (GIF)

  • Wilwood 150-2391 Gator Double Quick Change Brake Pad
    Wilwood 150-2391 Gator Double Quick Change Brake Pad
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    Double Quick-Change pads are compatible with our Wilwood Forged Dynalite and Billet Dynalite calipers.

    • Medium friction, low to medium temperarture range.
    • Good cold torque response.
    • Low to moderate wear rate

    Pads are sold each. (Will need 2 per caliper.)

    Tech Tip:  Only use full metallic pads on coated rotors.

    Brake Pad Brochure (PDF) 

    Brake Pad Brand Guide (Link)

    Learn how to properly Bed-In your brake pads by reading our tech article.  Bedding-In Brake Pad Procedure.

    Brake Pad Characteristics  (PDF)  

  • Speedway Cast Iron Drilled Scalloped Brake Rotor, 11.75 x .810 Inch
    Speedway Cast Iron Drilled Scalloped Brake Rotor, 11.75 x .810 Inch
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    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.  Speedway's 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.


     

  • Speedway Cast Iron Scalloped Brake Rotor - 11.75 x 1.25 Inch
    Speedway Cast Iron Scalloped Brake Rotor - 11.75 x 1.25 Inch
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                Speedway's premium 32 Vane scalloped cast iron brake rotors weigh only 6.36 lbs.
            
  • Wilwood 15Q-10144 Poly-Q Brake Pad
    Wilwood 15Q-10144 Poly-Q Brake Pad
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    For Ultra Lite single piston floating caliper, Outlaw 1000 and Wilwood Dynalite Single.

    • .450" thick, 1.97" long, 589 A Compound
    • Medium friction, low to medium temperarture range.                       
    • Good cold torque response.
    • Low to moderate wear rate
    • Best for aluminum rotors

    Tech Tip:  Only use full metallic pads on coated rotors.

    Brake Pad Brochure (PDF) 

    Brake Pad Brand Guide (Link)

    Learn how to properly Bed-In your brake pads by reading our tech article.  Bedding-In Brake Pad Procedure.

    8356823 Instructions (PDF)  

  • Speedway Cast Iron Drilled Scalloped Brake Rotor - 12.19 x .810
    Speedway Cast Iron Drilled Scalloped Brake Rotor - 12.19 x .810
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                Speedway's premium 12.19" x .810" drilled & scalloped vented cast iron brake rotors weigh only 5.56 lbs.
            
  • Wilwood 120-6816 Forged Dynalite Caliper, 1.75 Piston / .81 Inch Disc
    Wilwood 120-6816 Forged Dynalite Caliper, 1.75 Piston / .81 Inch Disc
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    The Forged Billet Dynalite is widely used in Road Race, Late Model Dirt, and Open Wheel motorsports. The latest applied developments and innovations in caliper design and manufacturing processes have resulted in substantial improvements in strength and performance over all comparable models.

    Forged Dynalites are the strongest calipers in the class, with weights starting at 2.80 pounds. Without even considering the overall greater strength and reliability of the forging, the reduced deflection tendencies and the resulting decrease in fluid volume displacement translate to increased clamping efficiency with less pedal travel. The bottom line is a taller pedal and better stopping power.

    • Pistion Count: 4
    • Area (in²): 4.80
    • Piston Type: Stainless
    • Fits .75" - 0.81" wide by 10" - 13.06" diameter rotors
    • Pad Area (in²): 6.36 
    • Pad Volume (in³): 2.1
    • Mount Type: Lug
    • Mount Side: Universal
    • Weight(Lbs): 2.80

    8351206816 Instructions (PDF)

  • Wilwood 160-3327 Aluminum Front Sprint/Midget Drilled Rotor
    Wilwood 160-3327 Aluminum Front Sprint/Midget Drilled Rotor
    x
                Wilwood's 3 hole mount rotors are precision CNC machined from high strength billet plate. Full symmetrical machining provides perfect balance, perfect flatness and the truest rotation of any rotor being built. These rotors fit the popular 3 x 5.00" mount bolt circle found on most sprint and midget front hubs. Wilwoods engineered drill slot pattern combines the highest degree of weight reduction with the highest resistance to thermal distortion in the contact faces. You get smooth engagement and a consistent full pedal from the low knock-back characteristics of this design. A durable black anodized finish prevents corrosion and simplifies the visual inspection of the contact faces. The best results are always achieved using PolyMatrix Q compound brake pads with these rotors.
    • Unsafe for street use & unsuitable for most forms of Racing.
    • Special racing application only. IE. Dirt Sprint & Midget.
    • Can result in catastrophic failure when misused.
  • Aluminum Brake Pad Spacers
    $2.99
    Aluminum Brake Pad Spacers
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    Get the most out of your worn brake pads! Place these aluminum plates between the caliper piston and the pad. This allows the piston to stay more firmly seated while using the remainder of the pad surface. For calipers with 2" pads. Specify thickness of .050" or .125".

    Compatible with calipers 835-1202498, 835-1209689, 835-1204062, and 940-31014*.

    * If used with 940-31014 the center hole must be drilled out to 3/16" for pin.

  • Wilwood 250-13365 NDLR Radial Mount Caliper Bracket for 11.75-12.19 Rotors
    Wilwood 250-13365 NDLR Radial Mount Caliper Bracket for 11.75-12.19 Rotors
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    These radial mount caliper brackets are designed for use with 11.75" to 12.19" rotors.  They fit Wilwood NDLR style racing calipers and come with all necessary hardware.

    • Radial mount caliper bracket kit
    • 11.75" to 12.19" rotors
    • Billet aluminum
    • Wilwood NDLR style calipers
    • Hardware included
  • Inboard Sprint Car Brake Kit w/ Drilled .810 Inch Iron Rotors
    Inboard Sprint Car Brake Kit w/ Drilled .810 Inch Iron Rotors
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                Get the hot new Wilwood NDL caliper, 2 brake bads, axle clamp with bolts and Speedways solid mount, drilled 12.19" x .810" iron rotor. 

    Components available separately.

  • Wilwood 160-10475 Drilled Steel Scalloped Rotor, 11 x .310 - 3 x 5 In.
    Wilwood 160-10475 Drilled Steel Scalloped Rotor, 11 x .310 - 3 x 5 In.
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    Wilwood's Drilled Steel brake rotors provide a durable lightweight option in applications where sustained temperatures remain in the low to moderate range, and high heat spikes are only observed on an intermittent basis. Steel rotors are typically found in lighter weight open wheel cars such as sprints and modifieds. A special alloy and proprietary manufacturing processes give these rotors high resistance to thermal distortion with excellent friction and wear characteristics against the pads.

    • Solid steel 
    • Front mounted
    • Bolt Circle: 3 x 5"
    • Threads:  Thru
    • Weight: 3.2 lbs
    • Face: drilled & scalloped

    CRotor Measure Schematic 

    Steel Front Rotor Application Chart

  • Wilwood 140-13502 Dynapro Single Right Rear Brake Kit, 10.2 Inch Alum. Rotor
    Wilwood 140-13502 Dynapro Single Right Rear Brake Kit, 10.2 Inch Alum. Rotor
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    The Dynapro Single Right Rear Sprint & Midget kits are a further evolution of a proven design from Wilwood’s 35+ years of engineering and producing the best open wheel braking systems. Dynapro single calipers have full 2.40 square inches of area for increased clamping force. Right Rear Kits contain Aluminum rotors for maximizing weight saving and maximizing brake torque. Right Rear brakes can also provide ‘loading’ the rear suspension for additional handling. Kits come complete with caliper, brake pads; caliper mounting brackets, caliper mount bolt kit and rotor.

    • Caliper:
      • Dynapro Single
      • Nickel plate finish
      • 2 piston
      • 2.40" piston area
      • Stainless piston
      • Lug mount type
      • 3" brake pad area
      • Polymatrix Q pad compound
    • Rotor:
      • Aluminum
      • Drilled
      • Black Electro coat
      • 10.2" O.D.
      • 0.31" width
      • Solid vane

    Note: This brake kit has an axle offset of 0

    14013502 Brake Kit Assembly Schematic

  • Heat Shield For 2 Inch Single Quick Change Pads
    Heat Shield For 2 Inch Single Quick Change Pads
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    Made for Ultra Lite Brakes 100 Series Floating Caliper. Heat shield is .065" thick.

  • Wilwood 130-4955 O-Ring Kit for GM Caliper with 2-3/4 Inch Piston
    Wilwood 130-4955 O-Ring Kit for GM Caliper with 2-3/4 Inch Piston
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                These replacement o-ring seals from Wilwood are designed for use with GM style calipers with 2-3/4" piston diameter.
    • For Wilwood GM Caliper with 2.75" piston
    • 4/pk

    Racer Note: Racing brake calipers, if properly maintained, can generally be used for several racing seasons. Frequent replacement of the caliper pistons and seals will increase caliper life and performance.

  • AFCO 6630040 F88 Forged Aluminum Caliper, 1.25 Rotor, 1-3/4 Pistons
    AFCO 6630040 F88 Forged Aluminum Caliper, 1.25 Rotor, 1-3/4 Pistons
    x
                AFCO set out in 2012 to take their market leading  caliper to the next level. The previous billet calipers have been  winning races over the last 10 years. With race technology improving  over the years, they knew it was time to revolutionize their caliper  line. After testing the new calipers all summer with multiple wins and  over 5000 laps in some of the most punishing conditions, they are proud  to provide their customers with the best calipers in racing. Many racers  think that brakes don't matter and all calipers are created equal, but  we know from testing that these calipers help win races!
    • Stiffest caliper on the market
    • Less brake heat
    • Extra wheel clearance
    • Universal mounting
    • Forged 6061 aluminum construction
    • 1/8" NPT inlet port
    • Speed bleeders installed for quick and easy maintenance
    • Heavy duty steel bridge bolts add 10% increase in stiffness
    • Internal brake fluid passages
    • Billet pistons with hard coat anodizing
    • 3-1/2" mount spacing
    • For 1.25" thick rotors
    • 1-3/4" piston
  • Wilwood 140-11762 Titanium Inboard Brake Kit
    $1,004.99
    $1,107.99
    Wilwood 140-11762 Titanium Inboard Brake Kit
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    Dynapro Radial Sprint Inboard Kit Features: A fully engineered bolt-on brake system for sprint car quick change rears with 3.00 x 46 splined axles. With titanium or Super Alloy.810 vented discs and a newly designed dynamic mount rotor axle clamp, are the lowest rotating weights available for Sprint racing. The lightweight advantages of the titanium rotor are fortified with the high durability, long wear, and superior heat control properties of advanced PolyMetallic coating technology. Forged billet DynaPro radial mount calipers with Composition Metallic pads, produce superior stopping power and consistent fade-free response. Kit includes Axle Clamp with Dynamic Mount Rotor Adapter assembly with T-nuts and Radial Mount Bracket and mounting hardware.

    Instructions (PDF) 

  • Afco 6690292 Replacement Piston for 1.38 Inch F88 Forged Aluminum Caliper
    Afco 6690292 Replacement Piston for 1.38 Inch F88 Forged Aluminum Caliper
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    These replacement pistons are intended to service your F88 forged aluminum AFCO calipers with a 1.38" bore. 

    • For F88 AFCO forged aluminum calipers
    • 1.38" bore
    • Billet pistons feature hard coat anodizing that provides great wear resistance and long life
    • Includes: Replacement piston

    Racer Note: Racing brake calipers, if properly maintained, can generally be used for several racing seasons. Frequent replacement of the caliper pistons and seals will increase caliper life and performance.

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