First proven on the ritchey trail stem the c220 handlebar clamp design creates a more secure interface by wrapping a full 220 degrees over the handlebar bolt forces are aligned with the clamp so that the stem body embraces the handlebar which is less prone to damaging lightweight bars this clamp design allows for a lighter faceplate and stem body with no sacrifice in strength or stiffness the stem body is forged 2014 aluminium for further weight reduction premium quality crmo steel bolts