Alcon
Alcon Performance Braking Solutions
Alcon is a designer and manufacturer of ultra-high quality, low volume brake, clutch and other automotive components. They operate in all areas of the industry around the world where the customer wants and expects the best, both from the product and the support that goes with it. Alcon clients and their requirements are as wide ranging as the products they supply. From tiny brake-by-wire controllers for Formula E racing cars to calipers required to stop 35 tonnes of armoured vehicle, the only factor common to everything they do is their no-compromise approach to engineering excellence. Whether you are an OEM looking for a few thousand components to use on a high performance road car, or a tiny race team needing just a handful of unique parts, Alcon has an answer.
And that is not the only reason Alcon is no ordinary supplier. When customers come to Alcon, they find not just a team of exceptionally talented and dedicated engineers, but a happy band of like-minded enthusiasts. Ever since Alcon was founded in 1983 by engineer and sports car racer John Moore, their work has been simply a passion. Alcon understands what motivates people to want to win in all competitive environments, and having supplied components for teams that have won championships in every major field of motorsport, they know what winning requires and how to deliver it too. Whether you are looking for a big brake kit solution, custom calipers or heavy duty rotors, Accesspeed has the Alcon brake product for you!
Brakes » Brake Proportioning & Pressure Valves
Brake Proportioning Valves & Pressure Valves
What is a proportioning valve?
A proportioning valve is a pressure reduction device used to adjust and tune brake bias. It is typically installed in-line in the rear brake line to reduce rear braking efficiency and compensate for premature rear-wheel lock-up; a result of incorrect front to rear brake bias. An adjustable proportioning valve permits incremental adjustments to fine tune brake bias. This ability to adjust front-rear brake bias is particularly important in race applications, as changing track conditions and vehicle dynamics usually require the brake bias be adjusted throughout the race.
What is brake bias?
Brake bias is the percentage of total braking force applied to the front wheels. It can also be called brake balance. A 60-70% bias is common on RWD street vehicles, applying 60-70% of the total braking force to the front brakes. Front wheel drive cars can have up to 80% brake bias.