The RC10, the most classic design in RC history has been reintroduced to the public and available options parts are in high demand. One of the most famous upgrades to the vehicle is the addition of a Carbon Fiber transmission brace to support the rear-end of the vehicle. The stock vehicle comes standard with a molded, white plastic brace which has considerable flex and when driven hard can affect the rear-end stability. The JConcepts Carbon Fiber option creates a more rigid assembly in each direction giving the racers a more solid feel in rear suspension and also resists chassis rear-end tweak and bending issues. Replace the plastic and go with authentic 2.5mm Carbon Fiber by JConcepts.