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Shimano GRX-815 11s Di2 front dereilleur brazed on
DownSwing silver-black
Order number: 391212 Manufacturer item no.: IFDRX815F
Shimano GRX-817 Di2 1x11s rear derailleur
Total capacity 31t black-grey
Order number: 391117 Manufacturer item no.: IRDRX817
Shimano GRX-815 11s Di2 Disc Brake STI left front
Resin with Fin / Flat Mount grey
Order number: 392293 Manufacturer item no.: IRX815DLF6SC100