Description
Shimano GRX RD-RX820 Dérailleur arrière GS 12 vitesses
Better chain protection and quieter, more stable shifting in gravel use.
The RD-RX820 is compatible with 11-34T and 11-36T 12-speed cassettes, providing a wide range of ratios for comfortable cadence on any terrain. The SHIMANO GRX 12-speed rear derailleur also features an integrated chain stabiliser for quieter shifting and safer chain management when the going gets rough. The chain tensioner has an ON/OFF switch for rides on slippery surfaces.
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