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BB30 Bottom Bracket Explained, Creaking, Pros, Cons and Fitting Shimano Cranks by Hambini
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- Опубліковано 3 сер 2024
- A detailed overview of the BB30 Cannondale Bottom Bracket system. This video covers the following aspects (I have put some hyperlinks to popular sections):
1. History
2. Bike Manufacturers using this system
3. How to install
4. Advantages
5. Disadvantages
6. Installation Issues (ie creak/clicking etc) • BB30 Bottom Bracket Ex...
7. Fitting a Shimano Bottom Crank into a BB30 Bottom Bracket equipped Frame • BB30 Bottom Bracket Ex...
Links to all of the drawings associated with this video are available here
www.hambini.com/downloads/
Visit my Website www.hambini.com
E-mail me contact@hambini.com
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Please watch: "BB30 Bottom Bracket Service"
• BB30 Bottom Bracket Se...
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I'm a mechanic and normally avoid (like the plague) workshop videos which don't come from Manufacturers or people like Park Tool. This is is one of the best videos I have ever seen . It is refreshing to see a real engineering approach to things. Thank you
Being an engineering student with a hideously creaking BB30 this has been the only video to fully explain why exactly it happens (and a marvelous solution for it) , not just the usual assumptions of garage mechanics. Thank you!
Thanks for the feedback
I can confidently say this is a mind blowing engineering information, broken down so well for a simple Joe like me to comprehend and damn, you made those BB30 manufactures seem lazy for not doing their job well enough!
This is genius,
🙏❤️🕊
I am most amazed buy the differences between this video and your current (2020) ones. This one was quite good. Today's are much louder for unknown reasons.
As a former engineering student and did robotics in high school, this video is absolutely amazing. Information was well explained, and so was the solutions with all its positives and negatives. It blows my mind you even went ahead and measure the disparity, designed your own BB, and then machined it. To us mere mortal/garage "engineers", this is nothing short of amazing.
Thanks very much for the kind comments.
@@Hambini Ya, this was awesome! Thanks, dude! Wonderful info and love your work and solutions. Keep it up!
Two years ago I bought a used Cannondale Super Six (the old model made in USA) with an BSA interface glued in (original Cannondale) with a Campy group set - only now I am getting aware how lucky I was
After reading the magazines (Tour- I am a German speaker) I thought it was a sinn to install campy crank instead of the light Cannondale ones - now I see that this has saved me from many issues
As always, after hours of searching for how to do something not-so-standard on my bike, I end up on your channel. You truly have THE BEST advices and explanations on how things work and what to do with your bike. I am so sorry that there aren't more people who know about your channel, but I'll make sure to tell anyone who inquires to look for the answers here! And by the way, I was wondering what is that you do - and I didn't expect anything less than aerospace engineer, since you have so much knowledge. Thank you once again for your brilliant work!!!
saw the flaws in the design - fixed them. proper engineer.
I can't believe what I've just seen here. So to summarise: you've made a dummy BB30 bottom bracket, constructed your own installation and removal tools, measured disparity from spec in microns with lazers, then built your own custom Shimano BB adapter. So far, so freaking amazing.
Thanks for putting a skewer through the Praxis works adapter. You've saved me a bunch of money and aggravation.
Getting back to some of your comments that I want to test with you. You suggest using loctite 641 around the outer race of the bearings but my experience (and that of other cyclists) is that the inner race/spindle interface is also a major area of problems and needs a lick of 641/609 as well. On my new Cannondale, the crank spindle is already exhibiting signs of fretting under the bearings and 641 has made a big difference in reducing that issue.
Also - in terms of bearings: do you have any recommended manufacturers for the 6806? There are the obvious candidates such as SKF/Enduro. Do they produce bearing races with sufficient precision for BB30 installations?
Thanks for the feedback. In relation to your questions.
1. Bearing systems should be designed so one end is fixed and the other is floating. In bottom brackets, the fixed is the interference into the housing. If you fix the crank as well, you will run in to a problem when the crank expands through heat (perhaps a warm day), it will at best reduce bearing clearance and cause more friction. At worst it will spin the bearing around in the housing.
2. I don't recommend Enduro at all. I think they are overpriced. SKF/NTN/FAG/INA/Nachi/NSK are the ones I would recommend. All of those bearings are produced to ISO/JIS standards. Enduro are designed to ABEC which is essentially a design standard for skateboards.
3. With reference your cannondale spindle. This is a problem whenever you have a hardened steel surface against an aluminium one. It's also the reason why Shimano always line their BB's with nylon or delrin to prevent the fretting. Not much you can do about this one. Retaining compound won't work in the long term.
4. I would hardly say I was amazing!
Hope that helps
Hambini
Can you provide a link to where we can order a bearing you'd recommend? I see a lot of 61806 with these dimensions; 30mm 40mm 7mm, is that correct? And how do I order smalley snap rings for my BB30?
I see you have them available through your website, sweet! Any chance you'd ship to the US?
Most all of the bearing manufacturers he listed are readily available here in the US. You do not need to have a Japanese bearing shipped from the UK and spend that money, plenty of companies already import them. Google is your friend. If you live in or near any kind of city, I promise you that there is an industrial parts supplier near you that will carry these bearings, or can get them easily. They are not bicycle specific, they are industry standard.
In my experience most creaking is caused by wear to the crank on the non drive side. Even with brand new bearings you can get creak is your crank has even the smallest amount of wear. my advice is if/when the bearing needs replacing that you replace the crank at the same time. this will most likely eliminate any creak until the bearing next needs replacing
This is the explanation we needed, but not the one we deserve! thank you so much for this!
This is the first video of yours that I have come across. I can say with absolute certainty that it will not be the last. Brilliant!
I totally nerded out on this video. I have no engineering experience, it's not normally my thing but I was fascinated by this tutorial. No rants in this one! Great stuff Hambini, you're a legend...
Best explanation/analysis of BB30 I ever seen. And exactly on example of BMC TM01 I am struggling with! Thank you for your efforts! You are really passioned about mechanic and excellent engineer with proper hands. Respect.
What a slick presentation and clever solution to a clear issue. Nice one
Excellent explanation! Clear, comprehensive, and understandable. You are a true engineer!
+Eric Chan thank you!
An excellent clear explanation from a well educated youngish engineer. It makes a change to listen to a real engineer as apposed to a salesman or management type. Thanks
Team Sky should be calling you any day now with a position as lead engineer...... I learned a ton but way over my capabilities!
Why would he wanna work for a team full of dopers? Yeah.
There are a lot of moron in high places that would be threatened by this guy's creativity. I would advise him to just invent stuff and patent it.
@@scin3759 Excellent point
Now this is a really good presentation without the swearing and disparaging comments which have become an odious feature of your current crop of videos. You have lost the clarity and simplicity of this video with recent stuff. Explain the engineering flaws, show the solution and let the viewer form their opinions. They will more than likely agree with yours if you have explained matters clearly. You are smart enough to do away with the expletives and mature viewers will be more likely to watch to the end.
Hi. Im new to MT maintenance and have been in the hunt for a detailed video about bottom brackets, especially adapter shell removal and installation. My search is over. 😁The English standard adapter shell started to slide out of the frame and caused my pedals to hit the swing arm. Now thanks to this video I have a full understanding of whats going on😀👍I just need that plastic sleeve and other tools to push it all way out then back in. Thank you so much. Liked and subscribed💯👌👏
A huge thanks to you Hambini for posting this video.
An absolute joy to watch and simple to understand unlike most of the youtube “cycle channels” that are looking to boost the following by substituting fashion following and attempts at humour for real info.
You have a big thumbs up from me and I’m now a subscriber.
Brilliant username.
This is a very detailed explanation that explains my problems on my 2015 Evo (non hi-mod). I find the details fascinating actually... Appreciate it!
You are very welcome
This is phenomenally well done. I love these videos; things me and my cycling buddies have always discussed.
Josh Frankum thanks for the feedback
Wow, that was thee most informative presentation ever, I have Scott Pro, with Di2 which has driven me bloody mad, changed to Shimano, better but not brill, bought a tool set from China for 30 squids, brilliant, fitted my new Shimano bb, better but still a wee creak, now going to try Locktite….failing that my beautiful Scott is going in the bin or canal...carbon floats? many thanks, incredibly useful....
This was incredibly useful and a lot of fun to watch. Really appreciate it. Thanks a lot for making this.
Thanks for the feedback!
Thank you very much for this excellent presentation. The creaks are gone now, after first pressing the BB30 cups into the OSBB 61 x 46 mm(!) bracket (specialized venge carbon frame 2013) and using the Loctite 7471 to fix the cups in the carbon frame and, later, use the Loctite 641 to fix the BB30 bearings into the cups.
Great content! I've been looking for a video like this for a little while now. Absolutely learned a few things about BB30. thank you🙏
Impressive. Thanks for sharing. I came here trying to figure out what the BSA bottom bracket standard was, and ended up learning a whole lot. Thanks again.
Thanks for the feedback
Brilliant video, great explanation of bb30 issues. A real help for novice mechanics. 👍👍
Thanks for the feedback!
Brilliant, I'm very impressed. Once my cannondale slate is out of warranty, the modification displayed in this video will be fitted. Thanks for the information.
TheK1steve thanks for the feedback!
me, expecting to fix my click by watching this video: *clicks video thumbnail*
you: "nothing really worked well so I built my own shell, out of titanium"
....thank you hambini
Yes, I got a kick out of that bit as well :) I ride a 20 year old Litespeed Ultimate and the machining on that frame is spot on so obviously I've got a thing for titanium ;)
Have been speaking to Hambini regarding fitting a Hambini BB. You can come unstuck if a part of the bike sits proud inside the bottom bracket.
In my case it was a LOOK bike that has a retained bolt embedded in the epoxy for holding the cable guide underneath the bike. So you can't get the one piece BB over and reseated on the other side when installing.
So please check your bottom bracket has free access to go right through. Hope this helps.
Thanks for the well considered technical detail. Engineering insight over marketing fluff
I don't think I've watched such an interesting video in AGES. FULL STOP!!
Wow. I love your presentation and how informative it was. You addressed an issue and not only explained why it was problematic but created a solution. I have a connondale quick 6 and have been experiencing a clicking or popping when pedaling and considered the bb or the crankset. I was looking for a solution and came across your video. I’m intrigued by your adapter and would love one for my bike but not sure if I could fabricate anything as remotely as impressive or effective as yours. Nice work
great infos for the two differrent retaining compounds.added to my knowledge today.
Hambini, you were so nice back then not one swear word!! lol!
Great video, tons of information and thank you for the extra links.
Brilliant idea to use a quick clamp, thanks for the ideas.
Thanks for the info its great to find truthful info on bike frames... thanks
Thanks! You're a genius who explains things extremely well.
Glad to help!
Wow - stumbled across this video by chance - really impressed by what I see in the couple of videos I have looked at so far.
Thanks for so much information presented with such clarity that even I can start to understand the hitherto mysterious world of bottom brackets!
I must have been lucky with my Cannondale Synapse which does not suffer from 'creaks'! I have book-marked your web-site for if/when I need to fix any issues.
I also now have a better understanding why I was recommended to go with a threaded BB for my self-indulgent 70th birthday present to myself (custom Ti frame by Seven).
Thanks for the feedback! it is always welcomed.
Thanks for the feedback.
Well spoken, and articulate!
Thank you and love all the Info about the bb,, greetings from Singapore 👍❤
I really enjoyed watching your video, good to see engineering at it's best.
Thankyou for the kind comments
Simply amazing. Such a great gentleman. A true professional.
Thankyou for the feedback.
@@Hambini, I think Clint was being facetious; either that or he ain't seen your other videos ;-)
Very good Hambini. From engineer (mechanical) to engineer and cyclist (Litespeed Solano) to cyclist, you hopefully have applied for your patent by now. This idea is the bomb!
Thanks for the feedback!
Thank you for creating this video.
Don O you are very welcome
Finally, someone making some profound statements about an industry that is going into the wrong direction whenever it can.
Thanks for the insight.
I'll keep your offer for the replacement in mind should I ever be facing a bike with this "standard".
Outstanding. My 18 year old son wants to study mech. engineering. I have been showing him your videos, as your wide knowledge of materials and their properties, your aptitudinal know-how, your industry-specific terminology, your ease of expression and overall presenting abilities are all fantastic. You make a very, very good teacher and exponent of the subject. You make a seemingly drab and tedious subject really interesting and your confidence even helps to glamorise the subject!!
Thank you for these!
Thanks for the feedback! It's always appreciated.
I've recently had success with making bespoke bearing presses by 3D printing them in PLA or PETG plastic.
Love your concept of 1 bb
HAMBINI, THE ORIGINS
Thank you for making this video. Really informative.
Thanks for the feedback!
Great information. You rocked it dude.
Firstly, loving the channel...... especially your "say it how it is" style....
Just one thing though..... Loctite activator doesn't make bond stronger...... it improves the curing on inactive surfaces, such as Anodized Ally etc....
Activator actually reduces the bond strength considerably below the locking compounds "Potential" strength..... BUT when bonding difficult surfaces, it's better to have a reduced strength bond that works, rather than a bond that fails to take....
I know it a small point, but I think it's work making, for clarity.
Superb. I hope you go into production. I for one really appreciate your explanations and engineering expertise. Gonna have a look at your website.
PETE WHITE thanks very much!
good work Mr Hambini
I bought a Planet-X carbon frame a few years ago, that had a BB30 bottom bracket. The Planet-X press-fit bearings and circlip fit well. I ran a vernier around the inside of the bb on the frame, the inside was good (ie round). I used a set square to try and ensure the bearings would line up laterally, they did. I fitted the press-fit bb, and the chainset (SRAM Red). So far in the last 6 years, no creaks. But I have only ridden about 2000 miles.
This is AMAZING!
Dude I'm blown away I've subd for more!
Thanks for the feedback. I try my best!
In @Hambini We Trust
Having watched your tech talk on the GCN show my first impressions were, wow this guy talks sense and I quickly realised that you are able to transfer your engineering knowledge and scrutiny into pure cycling science which, as a cyclist I can relate to. I too have an engineering background and love to set my own bikes up from scratch which can be as equally satisfying as riding them. This video gave an excellent insight into the bottom bracket design and your re-designed fitting looked like the dogs bllockos..... Personally I wish you all the best mate and hope your channel opens a few more doors for you in the not too distant future. (Hopefully the doors will be made from titanium with ceramic angular contact bearings for ease of access lol) but all the best. "I'm a cyclist and I live in the Pennines"
Brilliant solution! Well done!
Cognoscenti Cycles thank you
Amazing work!
Well Done! Most Apprecieted... Thank You...
Thank you from pacific north west
Pure passion.
Well done. Very interesting and well explained.
Thanks very much! I am never quite sure if my videos are too technical
excellent classic Hambini
Good info. Seemed not to mention that bottom bracket creak can be from INNER bearing to crank axle as well as OUTER bearings to frame. Retention fluid to both a good idea
My praxis works crank has a threaded BSA M30 BB, excellent for fitting a M30 spindle into a BSA english threaded frame. Great compromise.
Wonderful skill set and Loves his bikes ; ) Great video! I had to subscribe. Many Thanks and Kind Regards.
Thankyou for the feedback
Great video. Thanks.
Subscribed! This guy is a pro
A genius.
I bet he's a wow at parties.
you hit the nail on the heat.
That bmc is beautiful
Amazing. Such an intelligent and informative explanation and demonstration. Thank you
I love it, fortunately I've got a good old threaded BB (Campag Record.) I just find that BB30 was a poorer solution to a problem that was already solved by the outboard Shimano/Campag threaded systems. Now people are having to 'bodge' (And yours is one amazing A+ bodge:) ) a way to adapt frames back to the more reliable system. Unfortunately these adaptors make the whole system heavier than a standard threaded set-up...
manitoublack Most riders using these adapter set ups are stuck with these frames. They drank the marketing koolaide, it was lemon! There really is no good reason for press fit BBs except profits for greedy manufacturers.
These systems might solve a few problems but they’re mere bandaids,add complexity and cost.
Its sad that the business preys on unknowing, non technical consumers, but business has always been this way. There is always greed and a sucker is born every minute!
When consumers wise up and vote with their wallets things just might change!!
@@rollinrat4850 No kidding the world is full of idiots...and that's why I love my mid eighties Benotto, chromoly and campagnolo group set...still in original shape.
eduardo sampoia Same here. I still have my custom Ron Cooper from '79. I wore out and sold off most of my mid '7Os Nuovo Record, but I still have those wonderful hubs and they're still amongst my fastest rolling wheels. That Campy Groupo was on three different frames, I raced it on the road and cyclocross as well as exploring most of the dirt roads throughout the Santa Cruz Mtns.
Then in about '85 Shimano came out with SIS and it made Campy seem like an antique. I still use Dura Ace 7400 from '86 on that frame. It still works as good as new. Campy and others took years to catch back up to Shimano. Campy is now pretty nice stuff, but they have a much smaller market share outside of racing and rich old farts. Their high end bearing components have always been amongst the best you can buy. It's pretty sad that they're pushing premade wheel sets these days. Beautiful Campy hubs get harder to obtain every year!
@@rollinrat4850 Glad to hear that. I just hate all the new over engineered pricey garbage that has been coming out over the years. Carbon fiber is garbage in my opinion.
eduardo sampoia the Carbon produced by most of the bike industry? The larger bike industry ?? YES!!
The larger bike industry as a whole consistently fall short, at least from my perspective. I'm now in the industry too. I get to fix their issues all the time!
I produced carbon structures for Aerospace and satellite structures all through my career. I know what quality really is! I was a mechanical inspector and machinist.
But I whole heartedly agree. Bicycles are supposed to be simple machines...... Unless you really race apparently
Great video. Praxis Works PF30 on my GT bike is driving me crazy with creaking noises.
Great video
Brilliant, thank you
Wow, you certainly know your stuff dude
Thankyou
Very educating
Man... you're good.
BBRight owner here....never again! Great video as usual from Hambini but not as much bad language used alas 😅
I converted to BSA via praxis, been good last 5 years.
I use Hollowtech Bottom Brackets for my road bike and no problems at all except it was like shite to install it by the bike tech who managed to get the job done.
Legendary!
Interesting video...cheers 👍
dude thank you!
Hi Hambini, amazing content, congratulations for your channel. I have a CAAD12 think it has a BB30A that differs from BB30, I was wondering what BB would you recommend, many thanks and keep up the great work!!!
awesome dude
Thanks for this very informative video. Would you say this creaking sound affects reliability and longevity of the bottom bracket??
Brilliant 👏
Pure genius
Very nice thank you!
Jon Duran thanks!
Amazing work! So would you say this will give you the best of both worlds? Or you would still revert to shimano standard if you could?
Thanks for the BB 30 video. Your explanation has convinced me to avoid BB 30. Any alleged stiffness or lightness advantage is negligible compared to the problems. Different in the world of bicycle machine design is not always better.
What a responsible adult explanation
Nice design away