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Updated with a SHIMANO SHADOW RD design, the SHIMANO ULTEGRA 8000 rear derailleur offers a sleek appearance and optimized shifting performance. The RD-8050 Di2 versions offer the digital precision of SHIMANO electronic shifting and synchronized shifting.PRODUCT SPECIFICATIONS
MODEL NO RD-R8050-GS SERIES ULTEGRA R8050 Series Average weight 247 Remarks * w/o Bracket spec. available Mount_Direct attachment X* 11T pulley ✔ Firmware update by E-TUBE PROJECT ✔ Total capacity 37T Top-Normal spring type_SHADOW RD ✔ E-tube connector (pcs) 0 E-tube port (pcs) 1 Firmware update by E-TUBE Project ✔ Fluoric coated link bushings 4 Low sprocket_Max. 34T Low sprocket_Min. 28T Max front difference 16T Pulley cage GS Rear speeds 11 Sealed bearing guide pulley ✔ Sealed bearing tension pulley ✔ Top sprocket_Max. 12T Top sprocket_Min. 11T Total capacity 37T Fluoric coated link bushings 4 Low sprocket_Max. 34T Low sprocket_Min. 28T Max. front difference 16T Pulley cage GS Top-Normal spring type_SHADOW RD ✔ Top sprocket_Max. 12T Top sprocket_Min. 11T Rear speeds 11 SD300 connector (pcs) 0 SD300 port (pcs) 0 SD50 connector (pcs) 0 SD50 port (pcs) 1 SERIES LINE-UP