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The X-SYNC 2 chainring provides significantly quieter performance
the lock only gives a short warning tone
The SHIMANO GRX RX815 Di2 front derailleur delivers quick and smooth front shifting even under high pedaling torque
one pair of short bolts
1” tire widths (43/30T chainrings only)
OPEN U.P./ U.P.P.E.R./One+ Rear Derailleur Hanger 31.6mm x 20mm offset The X-SYNC 2 chainring providesThe 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
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