If the mounting threads of your derailleur hanger become damaged, it can be difficult or impossible to install the derailleur. If hanger replacement isn't an option, then it is time to repair the threads. This video will walk you through a variety of derailleur hanger thread repair methods including: Tapping Damaged Threads, using a Coil Repair Kit, and T-Nut Systems.

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See all of our videos on Derailleurs in our Derailleurs & Shifting playlist:    • Repair Help: Derailleurs & Shifting  

Video Contents:
00:00 Video Start
00:50 Tapping Damaged Threads
03:08 Coil Repair Kits
05:32 T-Nut Systems

Find a text-based version of this procedure here: https://www.parktool.com/en-us/blog/r...

➤ Tools & materials used:
• TH-1 Tap Handle - https://www.parktool.com/en-us/produc...
• TW-1.2 Beam-Type Torque Wrench - https://www.parktool.com/en-us/produc...
• TLR-2 High Strength Threadlocker - https://www.parktool.com/en-us/produc...

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Did you know that Park Tool is the #1 resource for bicycle repair education?
• Visit our YouTube Channel:    / parktool  
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➤ About Park Tool:
Since our founding in 1963, Park Tool has been the leading name in bicycle tools. Our YouTube channel is an extension of our mission to be the ultimate resource for mechanics and riders of all skill levels. Here you will find comprehensive repair help tutorials for a wide range of components and processes, as well as troubleshooting guides, tips and tricks, and information on the latest Park Tool products.