This video explains the complete procedure for removing and installing bottom brackets in threaded shells, including three-piece cranks, threaded external cups (through spindle), and bottom brackets in T47 shells.

Questions or comments? Leave them below!

You can find all our bottom bracket videos in our “Bottom Bracket” playlist.
︎ https://www.youtube.com/playlist?listPLGCTGpvdT04S-dkxjU7HJjboDnTJNmjp-

Video content:
00:00 Advance info
01:36 Distance
03:56 Installation – Thread preparation
05:19 Installation – Through spindle with thread
06:09 Installation – Cartridge style

Related text articles:
• Bottom Bracket Standards and Terminology – https://www.parktool.com/blog/repair-help/bottom-bracket-standards-and-terminology
• Bottom Bracket Tool Selection: Threaded and Threaded Together – https://www.parktool.com/blog/repair-help/bottom-bracket-tool-selection-threaded-and-thread-together

Tools and materials used:
• Matching bottom bracket tool – https://www.parktool.com/category/crank-bottom-bracket
• SWR-8 3/8" Drive Ratchet Handle – https://www.parktool.com/product/3-8-drive-ratchet-handle-swr-8
• SWB-15 3/8" Drive Breaker Bar – https://www.parktool.com/product/3-8-drive-breaker-bar-swb-15
• PPL-1 PolyLube 1000 Lubricant – https://www.parktool.com/product/polylube-1000-lubricant-tube-ppl-1
• ASC-1 Anti-Seize Compound – https://www.parktool.com/product/anti-seize-compound-asc-1
• TLR-1 Medium Strength Threadlocker – https://www.parktool.com/product/medium-strength-threadlocker-tlr-1
• TW-6.2 Ratcheting Click Type Torque Wrench – https://www.parktool.com/product/ratcheting-click-type-torque-wrench-tw-6-2

For text-based instructions on this process, see: https://www.parktool.com/blog/repair-help/bottom-bracket-removal-installation-threaded

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Further help with bottom bracket repair:
• What type of bottom bracket do I have? ︎ https://youtu.be/e-8G1G9QNX8
• How to remove and install bottom bracket – Press Fit ︎ https://youtu.be/2VnwKrC9rS0
• How to remove and install bottom bracket – screw together ︎ https://youtu.be/84Ut53i17iQ
• How to remove and install bottom bracket – Cup & Cone ︎ https://youtu.be/sEv8irsdQI8
• Crank and bearing removal and installation – Campagnolo Ultra-Torque ︎ https://youtu.be/YDk9sp5xRkA
• Removal and installation of a one-piece crank and bottom bracket ︎ https://youtu.be/dpl_wlTBC8k

Fix it:
Did you know that Park Tool is the best source of information for bicycle repair education?
• Visit our YouTube channel: https://www.youtube.com/parktool
• Visit the Repair Help section of Parktool.com: https://www.parktool.com/repairhelp
• Check out the Big Blue Book of Bicycle Repair: https://www.parktool.com/product/big-blue-book-of-bicycle-repair-4th-edition-bbb-4

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 cyclists of all skill levels. Here you'll find comprehensive repair tutorials for a variety of components and processes, as well as troubleshooting guides, tips and tricks, and information on the latest Park Tool products.

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