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Shimano RD-RX817 GRX Rear Derailleur

$319.99
Availability: In stock
SKU
123676

Shimano RD-RX817 GRX Rear Derailleur

With an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON/OFF switch for the chain tensioner. The RD-RX817 DI2 version offers the digital precision of SHIMANO electronic shifting and synchronized shifting. and is compatible with mtb cassettes with a 42T low sprocket max.

Silent and uninterrupted rear shifting on rough terrain

  • Adjustable chain stabilizer prevents chain slapping and drops

Smooth and reliable mixed surface shifting

  • Switch stabilizer ON/OFF to match the terrain
  • Gravel-tuned clutch tension

Compatible with current road DUAL CONTROL LEVER

  • Top sprocket: Max. 11T/Min. 11T
  • Low sprocket: Max. 42T/Min. 40T
  • Total capacity: 31T
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