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Product Summary

Universal Fit, Disc Brake System Type, Aluminum, Purple

  • Easy adjustment of front-to-rear brake bias
  • Universal design works on all vehicles
  • Provides up to 57% pressure reduction
  • 100 to 1500 psi rating
  • Includes two 1/8" - NPT to 3/8"-24 inverted flare fittings
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Key Specs

Proportioning Valve TypeKnob Adjustable
Port Quantity2-Port
Material TypeAluminum
FinishAnodized
ColorPurple
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Need To Know

Quick and Easy Returns

Return Policy

Speedway Motors 91031353 Details

As featured on Classic Truck’s Week to Wicked. Watch the transformationhere!

  • Allows easy adjustment of front-to-rear brake bias
  • Universal design works on all race cars
  • Has a 100 to 1500 psi range with up to 57 percent pressure reduction.
  • Includes two 1/8"-27 NPT to 3/8"-24 inverted flare fittings.

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Speedway Motors 91031353 Specifications

KEY SPECS
MFG. Part #91031353
BrandSpeedway Motors
Proportioning Valve TypeKnob Adjustable
Port Quantity2-Port
Material TypeAluminum
FinishAnodized
ColorPurple
GENERAL
Brake System TypeDisc
Proportioning Valve LocationUniversal Mount
Thread Pitch1/8" NPT
Overall Length4.25"
Overall Width1.25"
Overall Thickness1.64"
Centerline of Holes1.00"
NotesIncludes (2) 1/8" NPT to 3/8"-24 IFF adapters.
Sold in QuantityEach

Ratings & Reviews

4.8

55 Reviews

Overall Assessment

Customers appreciate our product for its functionality and excellent value for money. It is recognized for ease of installation and adjustability, making it suitable for various vehicle models and brake systems. The component's build quality has also been commended, addressing safety and performance concerns. Users have found it efficient in regulating brake pressure, achieving the desired brake bias, and solving braking issues. Compared to alternatives, particularly cheaper brands, our product is noted to last longer without leakage. It's been recommended as the preferred choice for brake fabrication due to its efficiency and affordability. Some customers expressed their satisfaction by purchasing the product multiple times.

4.8

55 reviews

5

47

4

7

3

1

2

0

1

0

Most Liked Positive Review

5.0

Great product at a Speedway great price.

I have used the Speedway proportioning valve on over a dozen streetrod brake systems. Easy installation and adjustment.

Most Liked Negative Review

3.0

Failed to fix anomaly!

According to product description the item did not cure my rear brake lock up problem when braking hard! Brake pressure bias was not affected at all even with max adjustment.

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I would buy again

5.0

4 months ago

Ole school

Portsmouth ohio

Verified

The product works as it should.no

Would Recommend

I have thanks

5.0

2 years ago

Walt

Wabash ind

Verified

Worked great

Would Recommend

Failed to fix anomaly!

3.0

3 years ago

Rick

Utah

Verified

According to product description the item did not cure my rear brake lock up problem when braking hard! Brake pressure bias was not affected at all even with max adjustment.

it worked out great-thank Ken in the Tech department for me.

5.0

3 years ago

Butch

Ripley, WV

Verified

allows me to put more or less control on my back brakes. it is on a 1949 chevy fleetline with a 1956 drive train.

Would Recommend

Yes

5.0

3 years ago

Raymond

Tomball Texas

Verified

Very good

Would Recommend

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Showing 5 of 55 reviews