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Specifications

  • Type: X-Sync pulley assembly
  • Use: Derailleur jockey wheel replacement
  • Note: Confirm derailleur model compatibility before ordering

FAQ

What is the X-Sync pulley and what makes it different?

X-Sync pulleys use a narrow-wide tooth profile that engages chain links alternately to reduce chain slap and improve chain retention through the rear derailleur. They are part of SRAM's chain retention system used across Eagle and AXS drivetrains.

How do I know when to replace derailleur pulleys?

Replace pulleys when teeth show visible hooked or shark-fin wear, when the pulley spins with noticeable roughness or play, or when shifting performance degrades despite cable tension adjustments and a fresh chain.

How do I confirm this pulley fits my derailleur?

SRAM offers several pulley assemblies across their derailleur lineup. Check your specific derailleur model against SRAM's parts documentation or contact DCL before ordering to confirm fitment.

Best For

Riders replacing worn derailleur jockey wheels on SRAM drivetrains to restore smooth shifting and chain retention performance.

SRAM X-Sync Pulley Assembly Reviews:

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