When it comes to stems, we're looking for that ideal balance of weight, stiffness, and durability to assuredly support our handlebars. And, that's what you'll see with the Oil Spill 35 Stem by FSA. CNC-machined aluminum allows FSA to maintain a lighter weight and increased rigidity. On top of these features, the Oil Spill 35 Stem earns its name from the trippy purple-gold coloring that gives the appearance of an actual oil spill.