Product Description
The Chase Bays Adjustable Proportioning Valve gives you precise control over your front-to-rear brake bias, improving pedal feel and overall braking performance—especially critical for custom brake setups and motorsports applications.
Features:
Fine-Tuned Brake Bias Control:
Adjusts rear brake pressure from 90% (least reduction) to 40% (most reduction)
Helps reduce rear lock-up and tailor braking feel to vehicle setup
High-Quality Construction:
CNC-machined 6061 aluminum body
Durable Delrin adjustment knob
Black anodized finish with laser-etched Chase Bays logo on both sides
Universal Fitment:
1/8" NPT threads for easy integration into custom brake systems
Includes (2) black 1/8" NPT to -3AN straight adapters
Includes Mounting Bracket:
Simplifies installation in a wide variety of vehicles
Proven Performance:
Superior pedal feel vs. factory proportioning valves
Used in Chase Bays Brake Line Relocation Kits
Ideal for Race, Drift, and Custom Builds:
Allows brake tuning to match weight distribution, tire size, and driving style
Adjustment Range Overview:
Knob all the way in/down = ~90% rear pressure (10% reduction)
Knob all the way out/up = ~40% rear pressure (60% reduction)
Setup Tip
Start testing with the knob turned fully out (least rear pressure), then fully in (most rear pressure). Use the two extremes to determine your ideal balance. Adjust gradually based on lock-up and pedal feel.
Note: This valve is designed for use with custom brake lines and may not work with factory hard line configurations without modification.