Ritchey's first full-carbon stem was designed to meet the needs of high-wattage European Classics specialists The Carbon C260 adds to the amazing strength-to-weight ratio of our C260 alloy and Carbon Matrix stems through the use of high modulus carbon fiber, increased boom diameter and a wider clamp. Gram for gram this is the stiffest, most advanced Ritchey stem ever C260 bar clamp creates a larger stem-to-bar interface, drastically reducing bolt stress 4 x M4 faceplate bolts and patented 260 degree bar clamp design reduces weight, increases stiffness and distributes stress more evenly 3 x M4 steer tube bolts and curved clamp slot reduces weight and steer tube stress 5Nm torque max on all hardware, same as 4Axis stems using M5 bolts Available lengths: 90/100/110/120/130mm Material: UD Carbon Monocoque Angle: 84D 1-1/4" steerer clamp 31.8mm bar clamp Stack Height: 42mm Fits most road and mountain bars UD Matte Black Finish