Sram red 10 speed front derailleurthe sram red 10 speed front derailleur changes everything offering unmatched shifting performance and accuracy even when shifting under load the sram specific 11 cable pull ratio guarantees direct smooth and precise gear shifting making it perfect for racing featuresslim spring design eliminates frame interferenceoptimized for shifting with x glider chainringsspeeds 2material aluminum outer cage tool steel inner cage composite tailweight 74g braze o