The truvativ descendant colab series martin soderstrom 318mm handlebar combining essential style and attitude with uncompromising engineering colab is an ever evolving signature series of components created in cooperation with bicycling39s most exciting athletes advocates artists designers and fanatics truvativ descendant colab series martin soderstrom 318mm handlebar features material al 7050 weight 340g width 780mm backsweep 7ordm clamp diameter 318