The One Up Stem can be used with a regular star nut and top cap like every other stem. It’s also compatible with existing threaded EDC top caps, for people who’ve already threaded their steerer tube. Or you can use the new OneUp Preloader (sold separately), which lets you store the EDC tool in your steerer without threading it.One Up Stem SpecificationsLength: 35mm (157g) 50mm (173g) / 35mm Dia. / 0° RiseColour: Black.Stack Height: 39mmBar Clamp Width: 55mmMaterial: 6061-T6 AluminumOne Up Stem InstructionsInstall bar. Top bar clamp bolts tighten down to stem body with no gap. Bottom bar clamp bolts will have a gap. Torque bolts to 6Nm.Install stem onto steerer, align and tighten top 2 steerer bolts (9Nm).