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saving you precious energy
Stack Height
Not all racers are pros
the black on black glistens when light kisses it at the right angle
Shimano GRX RD-RX717 Wireless Di2 12 Speed Rear Derailleur Running saving you precious energyThe Shimano GRX RD RX717 Wireless Di2 Rear Derailleur is designed to give gravel riders the durability and gear range to pursue any off road exploration that tickles their fancy. This derailleurs wedge shaped body is filled with a low profile Shadow ES stabiliser that produces excellent chain retention and reduced chain slap over rough terrain, and the lower profile construction produces excellent clearance over trail obstacles. Because it is
