USED Shimano Ultegra 6800 R8000 RS685 2x11 Hydraulic Post Mount Disc Road Gravel Groupset Shifters, Calipers, Derailleurs price_changed_on_2022 12 14 bottle boss on seat tube Spindle:Standard bottle boss on seat tube Combined with Stan's patented Bead Socket Technology Weight (grams): 1216g Shifter Derailleur Compatibility: Shimano
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