The SHIMANO GRX RD-RX400 Derailleur Pulley Set is a genuine replacement part designed for the Shimano GRX rear derailleur. The set includes both the guide pulley and tension pulley, ensuring precise chain guidance, smooth shifting performance and quiet drivetrain operation.

Manufactured to Shimano's original specifications, these genuine derailleur pulleys provide perfect compatibility, long-lasting durability and reliable performance for both everyday riding and demanding gravel or road cycling.

Replacing worn derailleur pulleys helps restore shifting precision, reduce drivetrain noise and extend the lifespan of your drivetrain components.

Key features:

• Genuine SHIMANO replacement pulley set
• Designed for the SHIMANO GRX RD-RX400 rear derailleur
• Includes guide pulley and tension pulley
• Delivers precise and smooth shifting performance
• Improves chain guidance and reduces drivetrain noise
• Made from durable, wear-resistant materials
• Easy to install
• Ideal for replacing worn original components