RD-RX817 GRX Di2, 11-speed rear derailleur, Shadow Best Price: £289.42 from Polaris Bikewear Buy for best price Show All Prices ***************
RD-RX817 GRX Di2, 11-speed rear derailleur, Shadow Best Price: £289.42 from Polaris Bikewear Buy for best price Show All Prices ***************
