RD-RX812 GRX Derailleur - 11 Speeds, 1x11

With an integrated chain stabilizer mechanism, the Shimano GRX derailleur offers a quieter ride with safe and precise shifting on mixed terrain. For riding on smooth surfaces, the derailleur features an ON/OFF switch for the chain stabilizer. The RD-RX812 rear derailleur is compatible with mountain bike cassettes with a maximum sprocket size of 42T.
  • The adjustable, gravel-friendly chain stabilizer prevents chain slap and drops.
  • Activate/deactivate the stabilizer depending on the terrain
  • Silent and uninterrupted reverse gear shifting on rough terrain
  • Smooth and reliable gear changes on mixed surfaces
  • Compatible with current Dual Control road shifters
  • High sprocket: Max. 11T/Min. 11T
  • Low sprocket: Max. 42 RPM / Min. 40 RPM
  • Total capacity: 31T
Price
$179.99 CAD
$179.99 CAD
Available In Stock
15-day return policy
Secure purchase
RD-RX812 GRX Derailleur - 11 Speeds, 1x11
  • Overview
  • Specifications

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