Fsa os 99 csi stem forged and cnc machined al7050t6 stem by full speed ahead fsa has a long history in the sport of cycling and a strong heritage of innovation in design and manufacturing features 4 bolt sculpted faceplate 64 titanium hardware finish black anodized with flip flop graphics for 31 8mm handlebars for 118 steerer tube 35mm stack height sizes 6 x 80 90 100 110 120 130mm weight 126g 100mmbuy fsa components from chain reaction cycles the worlds largest online b