e*thirteen Plus 35 Stem is light, strong with dependable clamping. e*thirteen Plus 35 Stems are made from ultra-strong AL-7050-T7 alloy to reduce weight and is designed with clamps that won't loosen, no mater how hard you ride. Our 132º recessed opposing steerer clamp bolts deliver optimal knee clearance, while maintaining alignment during tightening. The Plus 35 Stem has a highly machined look with a two tone ano finish