Ultegra 50 tooth derailleur for FC-R8100 ( 12 speed ) cranksets. For cranksets with 50/34 compact derailleurs. Hollowglide converter structure reduces weight and maintains strength for better power transfer and more accurate shifting.
Type: ROAD, Total package weight: 202g, Number of teeth on derailleur: 50, Derailleurs: 12 speed, For derailleur combinations: 50/34, Number of gears: 2x12, Derailleur spacing: 110mm, black
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