This video walks through the complete procedure of removal and installation of bottom brackets used in threaded shells, including three-piece cranks, threaded “thru-spindle” external bearing cups, and bottom brackets used in T47 shells.
Questions or comments? Leave them below!
See all our bottom bracket videos in our Bottom Brackets playlist
▶︎ https://www.youtube.com/playlist?list=PLGCTGpvdT04S-dkxjU7HJjboDnTJNmjp-
Video contents:
00:00 Preliminary Info
01:36 Removal
03:56 Installation – Thread Preparation
05:19 Installation – Threaded Thru-Spindle
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 Thread-Together – https://www.parktool.com/blog/repair-help/bottom-bracket-tool-selection-threaded-and-thread-together
➤ Tools & materials used:
• Appropriate 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 a text-based walk-through of this process: https://www.parktool.com/blog/repair-help/bottom-bracket-removal-installation-threaded
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➤ More Bottom Bracket Repair Help:
• What Type of Bottom Bracket Do I Have? ▶︎ https://youtu.be/e-8G1G9QNX8
• How to Remove and Install Bottom Brackets – Press Fit ▶︎ https://youtu.be/2VnwKrC9rS0
• How to Remove and Install Bottom Brackets – Thread-Together ▶︎ https://youtu.be/84Ut53i17iQ
• How to Remove and Install Bottom Brackets – Cup & Cone ▶︎ https://youtu.be/sEv8irsdQI8
• Crank & Bearing Removal and Installation – Campagnolo® Ultra-Torque™ ▶︎ https://youtu.be/YDk9sp5xRkA
• One Piece Crank & Bottom Bracket Removal and Installation ▶︎ https://youtu.be/dpl_wlTBC8k
➤ Fix It:
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• 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 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.
Straight to the point no BS whatsoever. This is pure quality.
Amazing video. I will just see a mistake on the conversion of the torque 30N.m is equal to 1.5kg at 20 cm. However, on the video, we see 15kg at 20cm.
What tool did you use to remove the Italian bottom bracket
Thanks for the video. It cleared up some confusion. Do you happen to have a video on how to remove the bearings from (e.g. Hope) threaded thru-spindle cups? Bearing (no pun intended) in mind I do not have the professional tools. Is there an effective DIY way to remove them and then somehow press new bearings back in, rather than knocking them back in? Thanks 😃
Great video. Thank you. 🙂
Yeah, I admit. I first just tried to remove the drive side – and it wouldn't come loose – just slip. Tried the non-drive side, but my confidence was lower, and it slipped, whatever way I tried. I then set the bike down on the ground, and tried a different, better fitting tool. It slipped once, so I gave up and watched this video. That did it! Did the NON-DRIVE side, normal thread, then the DRIVE SIDE (reverse thread).
What’s the first tool u used called?
best channel. You're awesome
👍🏻
I set my torque wrench to 30nm and broke the plastic cup on the left side for the cartridge type bottom bracket. It is secured most of the way (mayhe 2 thread lines from the finish)
Should i be concerned? Also any tips for if i need to remove it in the future