How to Remove and Install Bottom Brackets - Press Fit

This video will review how to remove and install press fit bottom brackets, including: PF41 (BB86, BB92), PF42 (BB30, OSBB), PF46 (PF30), Trek® BB90 & BB95, and any other cups and bearings that press directly into the frame.

Questions or comments? Leave them below!

See all our bottom bracket videos in our Bottom Brackets playlist

Video contents:
00:00 Preliminary Info
02:46 - Removal
03:27 - Removal - 30mm inside diameter
05:12 - Removal - 22-24mm inside diameter
06:16 - Removal - Trek BB90 & BB95
07:16 - Removal - Bearing Adapters
07:32 - Removal - 24+mm inside diameter
08:12 - Removal - Troubleshooting
08:35 - Installation - Surface Prep
11:02 - Installation - Without Bearing Drifts
12:22 - Installation - With Bearing Drifts
13:18 - Installation - BB90, BB95 & BB30

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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.

➤ More Bottom Bracket Repair Help:

[g.fortin]

You guys are the GOLD STANDARD for repair videos ! Thank you !! I think this is my last bike with PF though. I'm looking for threaded in future bikes !

[simonlant]

Thanks for your very clear guidance, It was a great help in fitting a PF BB with no dramas.

[jen]

I am never going to use a tool without a tutorial from Park Tool again for the rest of my life. Having the right tool is barely half the equation. Knowing how to use it is much more than half... my brain is full ! i feel like i am in school again, at university... overload ! i am terrified of BB's but I know I have to overcome my fear and thanks to PT i will !

[YaoHongChun]

It's like they made pressfit BBs as a way to future proof all bike mechanic's jobs

[moderntouchfurniture]

Excellent video! Thank you. Couldn't have done it without you.

[cwsmith]

You guys are outstanding bike mechanics. You deliver your knowledge without the air of superiority.

[AB-fhzh]

One of the best and most informative videos to highlight what an absolutely horrendous idea press-fit bottom brackets are.

[onilovni]

I hate the bike industry for pushing pressfit BB for so long.

[mattpenningtonify]

Thanks to this video, I cracked and destroyed a brand new $50 bottom bracket in seconds!

[theobirdsong]

This video is really helpful. I think the extreme watch tan makes it more informative.

[mafooj]

Great tip - inserting that plug. Thank you!

[Mattsretiring]

Fantastic and highly educational institutions. Thanks 👌👌👌

[kleini]

Yeets the bearing through the room. „U may not reuse that“ 😂

[MateoNomas]

It would be nice to see a Thompson press fit sealed square spindle bottom bracket installation. Cottered Thompson spindle bottom bracket with coaster break, give some problems of deformation... maybe the parts are't hardened at all :/
Thanks for the video!

[viffer]

It’s interesting that Trek seems to be going back to threaded bottom brackets on their latest bikes. Removal tool, press tool, different sized drifts, retaining adhesive, primer adhesive, non-reuseable bearings after removal. Just give me an old school threaded Shimano please.

[LuisHernandez-rhxr]

Excelente material!!!!. Una pena que no tenga subtitulos para los latinos que no hablamos inglés. Saludos desde Chile.

[Vam]

7:50 video narration says “against back of nondrive side bearings” but shows putting the tool against the drive side bearings

[dennisdelosreyes]

Excellent how to Provide the working Progress Good job💯💝💝💝💟💟💟✨✨✨👌👍

[richardgilbert]

Just buy a bike with a threaded bottom bracket, been working fine for decades and it's easy to install and remove and no annoying creaks unless it's goosed.

[ortizericx]

For the BB90 for trek do you recommend any grease to install the bearings or should it be dry?