Ritchey WCS C-220 Matrix Stem

Patented 220-degree 4-bolt bar clamp reduces weight, increases stiffness and distributes stress more evenly Unidirectional Matrix structural carbon exoskeleton is three times stronger than alloy alone Offset steerer tube bolts and curved clamp slot reduces weight and steerer stress Premium quality CrMo steel bolts are used throughout. steerer dia.: 1-1/8" bar dia.: 31.8mm rise: +/-6 deg color: matte black