Great value Altus rear derailleur offering crisp performance on- and off-road for 9-speed drivetrainsWide link design increases rigidity and service life11-tooth pulleys for reduced pulley wear and chain noiseAdvanced light action design with low friction fluorine coated link pivot bushingsTop-normal swing designTotal capacity 45TCompatible with 9-speed Hyperglide sprocketsProduct TypeRear DerailleursSpeed9 SpeedDisciplineMTBColourBlackSizeSGS - longDi2No