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SHIMANO GRX RX 815 Di2 2x11 speed rear derailleur
SHIMANO GRX RX817 Di2 1x11-speed rear derailleur
SHIMANO GRX RX810 2x11-speed rear derailleur
SHIMANO GRX R810 11-speed front derailleur
SHIMANO GRX R815 Di2 11-speed front derailleur