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. Carbon with 2014 alloy faceplate. Fits most road and mountain bars