OBP Brake Bias Adjuster 3/8"
Dispatched Monday, June 15, 2026
Tune your braking!
- Limits hydraulic pressure within the braking system
- Simple, quick installation
- Adjuster knob provides precise pressure adjustment
- Maximum decrease of 57% in line pressure
- Made by OBP
- Input and output : 3/8" UNF
- With 2x Male 3/8 - Female 10x100 adapters
Ask a question about this productOBP Brake Bias Adjuster 3/8"
This new generation adjustable proportioning valve delivers precise hydraulic pressure control while ensuring excellent strength and durability, thanks to its compact forged billet aluminum design.
The adjustment range spans from 150 to 1200 PSI, allowing a maximum line pressure reduction of up to 57%, one of the highest available on the market. The fine-thread adjustment knob provides smooth and accurate tuning, making it ideal for optimizing front-to-rear braking balance by proportionally reducing rear brake line pressure.
Lightweight and compact, the valve weighs only 147 g and features two side mounting points for easy installation.
Unlike standard knob-style adjustable proportioning valves, this model is equipped with 3/8"-24 IF (Inverted Flare) inlet and outlet ports, allowing direct installation of 3/16" brake lines without the need for additional adapters.
Technical information
- Input : 3/8" UNF
- Output : 3/8" UNF
- Pressure adjustments range from 150-1200 PSI
Characteristics
| Manufacturer | OBP |
|---|
OBP
OBP is a British company making all of their products at their factory in England. Particularly well known in motorsport, OBP make components for the brake system (master cylinders, bias, pedal boxes) and the fuel circuit (aluminium reservoirs, buffer tanks...).