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How to get it
Details
・Larger spacing for tire clearance
'Chain line +2.5 mm compared to a conventional road front derailleur
・Wider development range at the front
'Front possibility: 17T
Features
The SHIMANO GRX RX815 DI2 front derailleur provides smooth front shifting and rapide, even under high pedaling torque. It is designed to accommodate a 17T gap between the two chainrings, and features a chain guide compensation system in relation to the chain position and can be used in either SHIMANO SYNCHRONIZED-SHIFT or semi-synchronized mode.
