The Control Stem is tailor made with a 35mm clamp to partner with the Control SL bar, delivering more stiffness and more control-coming in at an incredibly light 100g (50mm). Turns out, you can have it all.LIGHT: Where light weight and stiffness meet. Its high-quality 7075 Alloy and Ti hardware, and featherweight function make the Control SL Stem a perfect match for race-day setups.STIFF: Made with the same integrity as the suite of stiff Roval components, the Control SL provides race-ready rigidity allowing for precision on the bike.FIT: With six lengths to choose from and 6 degrees of rise, you know you'll find your perfect fit. Features: Bolts: TitaniumClamp Diameter: 35mmClamp Height: 40mmLength: 50mm, 60mm, 70mm, 80mm, 90mm, 100mmMaterial: 3D-forged and CNC-machined, 7075 aluminumRise: 6 degree riseSteerer Tube: 1-1/8"Weight: 100g (at 50mm), 130g (at 100mm)