In 2016, TRP began working with reigning world cup champion Aaron Gwin. Out of the gate, he was impressed with the initial level of performance, but he did have a list of improvements needed to achieve world cup winning performance. Working closely with the TRP development team, improvements were made in nearly every part of the brake and tested on the world cup circuit throughout the season. The result is G-Spec, Aaron Gwin asked and TRP delivered every detail. TRP took most of those changes and put them into the more affordable standard Quadiem. This brake features a lever made from cast aluminum and a forged/CNC’d caliper. Both of which have been given a sleek painted silver finish. In the brake riders will also find hybrid pistons (ceramic/steel) for improved heat dissipation, tool free indexed reach adjust and cooling fins on the caliper.