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Explore practical, expert-written guides about derailleur hanger identification, compatibility, axle standards, alignment, damage symptoms and replacement.
Use this knowledge base to learn how to choose the correct hanger, understand quick-release, thru-axle and SRAM UDH systems, diagnose shifting problems and avoid common replacement mistakes. Elanus Parts has helped cyclists identify thousands of derailleur hangers and offers more than 2,000 replacement derailleur hangers.
What Derailleur Hanger Do I Need?
Choosing a derailleur hanger by bike brand alone is not always reliable. Use this compatibility checklist to determine whether your bike needs a frame-specific hanger, SRAM UDH or no hanger at all.
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