Ritchey WCS 4-Axis 44 Road Stems have a wider (44mm) face plate with wider spaced bolts than the WCS 4-Axis Stems.40mm stack heightSame as 4-Axis, but has a wider (44mm) face plate with wider spaced boltsProvides increased stiffness for large riders or riders using wide handlebars40mm HeightItem SpecificationsColorWet BlackWeight132gIntended UseRoadBar Clamp Diameter31.8mmStem Angle84,96degStem Length110mmSteerer Tube1-1/8" ThreadlessDefined ColorBlack