Dérailleur arrière vélo Shimano GRX RD-RX812 11v pour mono plateau reviews
At a glance
Dérailleur arrière vélo Shimano GRX RD-RX812 11v pour mono plateau reviews: 4.5/5 based on 12 analyzed reviews from 2 sites, updated November 2, 2026.
Praised: shifting precision and shadow RD+ technology.
Review summary
Written by Augur from the 12 reviews analyzed
This rear derailleur is designed specifically for 1x single-chainring setups on Gravel bikes. It is particularly appreciated for its exemplary reliability and the smoothness it brings to gear shifts. Shifting precision is greatly improved thanks to the integration of Shadow RD+ technology, which effectively stabilizes the chain. Its proven technical compatibility with Shimano 105 11-speed shifters greatly facilitates conversions and the optimization of existing drivetrains. No recurring weaknesses or concerns are reported by users.
What buyers talk about most
- Strength : Shifting precisionGear shifts are significantly smoother, faster, and more precise across all sprockets.
- Strength : Shadow RD+ technologyThe integrated chain stabilizer limits bounce and secures the drivetrain on rough terrain.
- Strength : Cross-compatibilityThe derailleur works perfectly in combination with Shimano 105 11-speed levers.
About the product
Brand, category, barcode, review sourcesShow Hide
- Brand
- Shimano
- Category
- Sport & fitness
- Barcode (EAN)
- 4550170448882
- Reviews analyzed
- 12
- Last updated
- November 2, 2026
- Version for AI
- Markdown version of this page, for AI assistants
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