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Shimano
GRX RX820 12-Speed Rear Derailleur

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$126.99

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Why We Like The Shimano GRX RX820 12-Speed Rear Derailleur

The Shimano GRX RX820 12-Speed Rear Derailleur delivers quiet, stable shifting as we ride over mixed-terrain on our 12-speed GRX gravel drivetrain. Shimano’s Quiet and Secure technology creates a low-profile design, reduces chain slap, and improves chain retention, while the ON/OFF stabilizer switch matches the terrain for optimal performance.




Details

  • A high-performance rear derailleur designed for 12-speed cassettes
  • Quiet and Secure technology creates a low-profile design
  • Features an integrated chain stabilizer for added chain management
  • The ON/OFF switch allows for outings on smooth roads
  • Item #SHIU1M1
Capacity
42T
Cassette Range
11-36T
Gearing
12-speed
Compatibility
HG 12-speed chain
Claimed Weight
270g
Activity
gravel
Manufacturer Warranty
2 years

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