The X-CS FR carbon boom now offers the same precision performance as the XC wave booms but with a slimmer diameter grip than our other freeride or freerace booms at 26.5mm-28.5mm. This boom offers instantaneous control with its increased torsional rigidity and square profile tail end. Allowing zero lag time from flexing connections. Giving the cosiest sensation you have ever felt while holding a boom, and now allowing you to sail longer and grip easier with the narrower diameter arms.