The 311 FL-X has been developed with regard to flex behavior. The 311 FL-X has damping characteristics between 20% and 30%. 16 or 12 degrees of backsweep provides a natural transition from lower arm to the rider’s hand allowing for near perfect ergonomics. 4 degrees of upsweep puts the elbows into a dynamic riding position. Highest grade of carbon, tuned with precise wall thickness