Galets de dérailleur arrière Shimano Deore XT 12v RD-M8100/M8120 reviews
At a glance
Galets de dérailleur arrière Shimano Deore XT 12v RD-M8100/M8120 reviews: 4.7/5 based on 33 analyzed reviews from 3 sites, updated November 2, 2026.
Praised: backward compatibility and reduced play.
Review summary
Written by Augur from the 33 reviews analyzed
These 13-tooth derailleur jockey wheels are designed to effectively replace worn parts on Shimano 12-speed drivetrains. Users particularly appreciate the sealed bearings, which guarantee smooth operation and excellent pedaling fluidity. They also stand out for their superior stiffness, offering significantly less play than the SLX range version, which helps restore optimal shifting precision.
What buyers talk about most
- Strength : Backward compatibilityThese jockey wheels install perfectly as replacements on SLX range derailleurs.
- Strength : Reduced playThe XT version design offers a more precise fit and less play than lower-end models.
- Strength : Smooth rotationThe integrated sealed bearings ensure very smooth operation of the drivetrain.
About the product
Brand, category, barcode, review sourcesShow Hide
- Brand
- Shimano
- Category
- Sport & fitness
- Barcode (EAN)
- 4550170521790
- Reviews analyzed
- 33
- Last updated
- November 2, 2026
- Version for AI
- Markdown version of this page, for AI assistants
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