Shimano Ultegra R8070 GRX 1x Di2 GS 11 Speed Electronic Hydraulic Disc Brake

What’s included: Shifters (ST-R8070), rear derailleur (RD-RX815 GS), brake calipers (BR-R8070), junction box A (bar end), junction box B, Di2 wires. Gearing: 1x11 speed.

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