Ritchey WCS C260&176; Black Stem 2012 The WCS (World Championship Series) line is the gold standard for lightweight, bombproof race parts & cutting edge innovation. The rainbow stripe WCS logo represents the numerous world champions that have won on Ritchey. Ritchey&8217;s revolutionary, patented 260-degree stem clamp design brings a new level of stiffness, trength & weight savings to 3D forged alloy stem. The 260 degree clamp distributes clamping stress more evenly through the stem body, faceplate, hardware & handlebar. This revolutionary patented design starts with a bar clamp that wraps a full 260 degrees around the handlebar to distribute clamping stress more evenly through the handlebar, faceplate, hardware & stem body. The steer tube clamp uses three bolts & a curved slot to reduce clamp stress on the steer tube. The body is 3D forged from an advanced 7050 aluminum & internally machined for further weight reduction. Premium quality Cr Mo steel bolts are used through