Brake Tech

Unboxing the Alcon BBK! Video from GT Channel.

The GTChannel  shows an unboxing of the Alcon-Paragon big brake kit.  THe GT Channel are automotive content creators and partners focused on building a community with resources, tools for success, and for the enjoyment of their audience, wherever they may be.


Improving Brake Feel

Improving Brake Feel



Travel loss is how much pedal movement occurs before the vehicle begins to slow.  Travel loss is measured at the connection to the vacuum booster (power assisted brakes) or the master cylinder pushrod (non-power assist). Travel loss and the associated pedal feeling consists of the following, keeping in mind that any travel loss is multiplied by the pedal ratio that is specific to your car’s braking system:


1. Precision-fit between the brake pedal pin and booster push rod. This portion of travel loss can unfortunately be quite a bit for systems that use a brake light switch that is mounted at the pedal linkage.   The reason for the large amount of travel loss with a brake light switch on the pedal is due to the allowance of a significant amount of brake pedal travel prior to activating the switch.

Feel can be improved here by reducing the loose fit at the pedal pin connecction.

Read more: Improving Brake Feel

Glossary of Braking Terms

Glossary of Braking Terminology

By Stephen Ruiz and Carroll Smith

ABS: Acronym for Anti-Lock Braking system. Anti Lock braking systems sense the speed and rate of deceleration of each of the wheels of a vehicle independently and, through a microprocessor control system, act to prevent lock up of any of the tires under braking force by cycling the line pressure to the wheel that is approaching lock up. Most current passenger cars are fitted with ABS.

Aluminum Beryllium: A composite material of exceptional stiffness to weight ratio used for Formula One calipers (and Ilmor/Mercedes engine blocks) in the late 1990s. Now outlawed on health grounds

Read more: Glossary of Braking Terms

Measuring your Rotors

Below are the key measurements for determining your Alcon rotor (disc) specs.  These are required when ordering custom rotors.

W=Width of rotor (mm)
D1 = Overall diameter of rotor (mm)
D2 = Inner diameter of braking surface
N =Number of rotor/hat mounting holes
PCD = Diameter of center-to-center of rotor-hat mounting holes.



Alcon Brake Kits

The myth of warped brake discs


Have you ever heard someone say they had warped brake discs?   Typically someone had the discs resurfaced to cure the problem and after a relatively short time the roughness or vibration came back.

In almost every case, this problem is not caused by a warped discs, but that the brake pad material transferred unevenly to the surface of the disc. This uneven deposition results in thickness variation or run-out due to hot spotting that occurred at elevated temperatures.

Friction is the mechanism that converts dynamic energy into heat.

Read more: The myth of warped brake discs

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