Full Speed Ahead KFX SiC ICR Integrated Handlebar65x780mm -12 ICR. The FSA KFX SiC ICR Integrated Handlebar combines bar and stem into a single carbon structure for maximum stiffness and weight savings. Designed for mountain bikers who demand precision and control it features internal cable routing (ICR) for a clean cockpit and improved aerodynamics. This integrated setup is ideal for elite XC and trail builds.