BB30 Bottom Bracket Service and Bearing Replacement 

Completed my bb30 install and this was very helpful. Many subtle things well covered like easy way to push the rings etc.

Brilliant way to remove bearings, thanks for sharing!

Brilliant. Clear, informative and very very useful. Cheers!

Tool available from here www.hambini.com/hambini-bb30-pf30-bb386-bottom-bracket-installation-and-removal-kit/

So, if you’re just replacing the bearings you don’t need to remove snap rings if they’re in good condition?

Dumb question: At 4:02, you say "...retaining compound and activator if you’ve got a carbon frame". But isn’t this inside the bracket, not the frame? Is the bracket carbon too? Sorry if I’m not getting it. I’ve never taken a bottom bracket apart, just preparing for the day I may have to. It seems most other people use the terms "frame" and "bottom bracket" interchangeably so I’m confused about what the difference between them is. E.g., I have a Cervelo R2 (yes, I’ve seen your opinion of that exact make/model but I’m new to road bikes and bought this second hand before I was any wiser). My understanding is that there is a metal bottom bracket "sleeve" inserted into the frame into which the bearings are pressed. Is that correct, or is the bottom bracket an integral part of the carbon frame?

That is a superb explanation thank you!!!!

Gonna feel that you may hate me. I’ve just fitted a BBinfinite single bb30 unit. I wasn’t happy with my Sram bb30 cups. Interesting video still

Hi, if I don't have Loctite 641 can I use Loctite 648?

Hi Hambini - when installing your bearings in a carbon frame, would you apply the 641 and activator at the same time...or would you pre-treat the surfaces with activator beforehand and allow to dry for 30 minutes before installing the bearings? Cheers...

very helpful video! plus extra tips.

Good video, thanks for posting :-)

With all the negativity around bb30’s would you advise steering clear of bikes with them fitted. I’m looking to buy a new bike and notice a few I’ve looked at have this fitted.

Very helpful video! Could you say something about the effect of over/under tightening the cranks. I think I replaced the bearings ok, but they don't feel entirely smooth under high torque and considering they are only 150km-1 week old I am surprised and I wonder if I'm crushing them because of over tightened cranks. Thanks. ps I don't have a torque wrench that can do the torque required to tighten the cranks.

I have a bb30 euro somthing like that and I dont know what size of cranks should go on 180mm or ??? I wanted to add carbon fiber cranks and only come in 3 sizes

Hell of a better way than hammering lol

What kind of steele, 6806 bearings do you recommend getting? There are so many different ones at different price ranges, its confusing. Are they all the same?

Excellent vid!

Excellent video. Thank you! Just one question if you don't mind ... Is there any good reason to remove and service bottom bracket bearings that seem to be in good shape? Park Tool's youtube suggests that you don't remove press fit bearing unless you are going to replace them.

Great video thanks so much!

why you need those two lubes or what is that?

Thanks!

thanks for sharing

This video is amazing! Thank you for making it. Can I ask though, the bearings I removed had some extra external seals between the bearings and the cranks. Would you recommend doing without these, reinstalling them, installing new ones?

@Hambini, what do you think about using Loctite 648 (Shear strength 3,900 PSI) instead of Loctite 641 (Shear strength 1,700 PSI) you suggest? I did use 641 but it didn't reduce the creaking in the long term, creaking reappeared after only 30km. I have bearing press/removal tool with M8 screw so I guess I should be just at the edge of being able to pull the bearing out once it's completely cured using 648 (~20kN). Any suggestions? A big fan of you, thanks.

Can you comment on the necessity of the Retaining Compound? That's the first I've seen that used.

If i have a carbon frame and use the activator with the retaining compound, how is it used?

@Hambini: When will the tool be in stock on your website? Thanks.

Are the black parts delrin?

weel done 😊

Hello, i've got an aluminium frame. Would you recommand Loctite 641 rather then 609 and eventually why ?

Do you actually ever re-stock your shop or is it dead?

BB30 bottom brackets - the biggest POS perpetrated on the biking public since Biopace chain rings. Been through SIX sets of bearings this season and just blew another one. I'm taking this $300 crank and throwing it in the trash as soon as my new 24 mm Shimano XT arrives. Good riddance.