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The SHIMANO GRX RX815 Di2 front derailleur delivers quick and smooth front shifting even under high pedaling torque
8 length 89mm open wrench 8mm
the case as well as supporting elements of the locking mechanism are made of special hardened steel
one pair of short bolts
They provide insulation
OPEN U.P./ U.P.P.E.R./One+ Rear Derailleur Hanger 31.6mm x 20mm offset The SHIMANO GRX RX815 Di2The Open Cycle Rear Derailleur Hanger is a precise replacement component designed specifically for the U. P. and U. P. P. E. R. and One+ framesets. It ensures your drivetrain maintains perfect alignment for crisp, reliable shifting across any terrain. This hanger is compatible with all major drivetrain brands, including Shimano, SRAM, and Campagnolo, that utilize a standard derailleur mounting system. Keeping a spare on hand is an essential part of
