Fsa energy compact wing pro barfull speed ahead fsa produces world class bicycle components for road cycling mtb and triathlon for world tour teams club riders and people who just love to ride their bikes fsa has a long history in the sport of cycling and a strong heritage of innovation in design and manufacturing featuresdouble butted and tapered al705034mm ergo fl at top120mm wide center round section makes it easy to mount accessories31 8mm x w380 400 420 440mmc c125mm drop 80mm