You really can have it all - the WCS C220 stem rivals the performance of the revolutionary C260 stem, but is faster and easier to install and remove thanks to a press-fit handlebar clamp interface and forward-facing hardware.The C220 handlebar clamp, first proven on the Ritchey Trail stem, creates a more secure interface by wrapping a full 220° over the handlebar. Bolt forces are aligned with the clamp so that the stem body "hugs" the handlebar, making it less susceptible to damage on lightweight handlebars. This clamp design allows for a lighter front plate and stem body without sacrificing strength or stiffness.The stem body is forged 2014 aluminum for further weight reduction. Black screws made of high quality stainless steel are used throughout. - Intended use: road bike / cyclocross - steerer tube diameter: 1 1/8 inch - angle (in °): 25 ° Stem - Type: Ahead dimension - handlebar clamping (mm): 31.8 mm Main information - Material type: aluminum.