The the WCS C220 stem rivals the performance of the revolutionary C260 stem design, but it's quicker and easier to install or remove thanks to a press-fit handlebar clamp interface and forward-facing hardware.The handlebar clamp design creates a more secure interface by wrapping a full 220 degrees over the handlebarBolt forces are aligned with the clamp so that the stem body embraces the handlebar which is less prone to damaging lightweight barsClamp design allows for a lighter faceplate and stem body with no sacrifice in strength or stiffnessItem SpecificationsBar Clamp Diameter (mm)31.8ColorBlatteDefined ColorBlackLength90MaterialAluminumS.H.I.S. Stem Clamp Diameter28.6Stack Height42Stem Angle (deg)+17Stem Angle (deg)-17Weight134 Ritchey WCS C220 Stems Stems UPC: 796941317252