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
@8o86
10 күн бұрын
the park tool super mario is actually pretty good
@MrJouleJr
6 жыл бұрын
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!
@Hambini
6 жыл бұрын
Thanks for the feedback
@Thejour689
4 жыл бұрын
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, 🙏❤️🕊
@danielhertercasagrande1686
2 жыл бұрын
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
@jaykan1002
7 жыл бұрын
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.
@Hambini
7 жыл бұрын
Thanks very much for the kind comments.
@robertleever7616
5 жыл бұрын
@@Hambini Ya, this was awesome! Thanks, dude! Wonderful info and love your work and solutions. Keep it up!
@whynotride327
4 жыл бұрын
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.
@psi1971
7 жыл бұрын
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?
@Hambini
7 жыл бұрын
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
@aaron___6014
7 жыл бұрын
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?
@aaron___6014
7 жыл бұрын
I see you have them available through your website, sweet! Any chance you'd ship to the US?
@elephantcup
7 жыл бұрын
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.
@chillypaws2051
6 жыл бұрын
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
@dannywade6218
Жыл бұрын
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!
@gregoxenham2842
4 жыл бұрын
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.
@srdjanbabic8304
Жыл бұрын
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!!!
@waynosfotos
3 жыл бұрын
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.
@matyates8498
3 жыл бұрын
What a slick presentation and clever solution to a clear issue. Nice one
@denali9643
7 жыл бұрын
Team Sky should be calling you any day now with a position as lead engineer...... I learned a ton but way over my capabilities!
@Einhander49
6 жыл бұрын
Why would he wanna work for a team full of dopers? Yeah.
@scin3759
6 жыл бұрын
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.
@Sionnach1601
5 жыл бұрын
@@scin3759 Excellent point
@jezoliver6464
3 жыл бұрын
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...
@Sionnach1601
5 жыл бұрын
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!
@Hambini
5 жыл бұрын
Thanks for the feedback! It's always appreciated.
@thetedster7812
6 жыл бұрын
saw the flaws in the design - fixed them. proper engineer.
@speckles9251
5 жыл бұрын
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".
@MrDazP1adv3ntures
5 жыл бұрын
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"
@ericchan7500
7 жыл бұрын
Excellent explanation! Clear, comprehensive, and understandable. You are a true engineer!
@Hambini
7 жыл бұрын
+Eric Chan thank you!
@robcarr23
5 жыл бұрын
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....
@manitoublack
6 жыл бұрын
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...
@eduardosampoia5480
4 жыл бұрын
@RollinRat 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.
@eduardosampoia5480
4 жыл бұрын
@RollinRat 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.
@DeepakKumar-lv4te
3 жыл бұрын
@RollinRat press or interference fit is everywhere in engineering applications, frames shouldn't be an exception. Hambini has even made his press fit rather than threaded.
@stevec6875
4 жыл бұрын
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.
@Peter-pz5su
6 жыл бұрын
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).
@Hambini
6 жыл бұрын
Thanks for the feedback! it is always welcomed.
@Hambini
6 жыл бұрын
Thanks for the feedback.
@martinturner4288
3 жыл бұрын
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
@TheK1steve
7 жыл бұрын
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.
@Hambini
7 жыл бұрын
TheK1steve thanks for the feedback!
@stephenimsong3462
2 жыл бұрын
This is the explanation we needed, but not the one we deserve! thank you so much for this!
@daveholmes7160
3 жыл бұрын
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💯👌👏
@richardwright2000
3 жыл бұрын
So why so many complaints of creaks on caad13 (and other al frames)? With a properly stabilized and jigged alloy frame it should be straight forward to machine an accurate bore straight through to proper interference fit tolerance?
@1rabidbiker567
3 жыл бұрын
Mr Hambini, I have a question regarding the one-piece bb30 to shimano 24mm adapter sleeve you made.. I was thinking .. after pressing it in from one side all the way thru.. the only thing keeping the one-piece sleeve in place is friction. Is that enough to keep it place. Doesn't that set up needs a lock ring of some sort for added security to keep that from slightly sliding back out where it came in? The material you used for the demo is aluminum/metal and the interference friction( is that correct?) is high because of the nature of the material.. But what if the frame material is carbon.. and have gone thru a number of bearings as such the 42mm bb shell have slightly been enlarged due to the process of press in and out. I hope you can comment and highly appreciate your suggestion. Thank you!
@hughstultz7849
5 жыл бұрын
Thanks for the well considered technical detail. Engineering insight over marketing fluff
@andrejnrk
6 жыл бұрын
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.
@bengt_axle
4 жыл бұрын
Hambini, regarding your BB30 adapter, if the holes in the frame are not perfectly round (like your blank) will your adapter not slip from side to side? At least with the Praxis there is a lip and and thread to hold the two cups together. What will hold your adapter in place if friction is not enough?
@danboffe
2 ай бұрын
is this the birth of the Hambini bottom bracket?
@truantray
5 жыл бұрын
I've recently had success with making bespoke bearing presses by 3D printing them in PLA or PETG plastic.
@MrGeorgegroenewold
3 жыл бұрын
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.
@cupiddstunt
4 жыл бұрын
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.
@Hambini
4 жыл бұрын
Brilliant username.
@jfred7760
7 жыл бұрын
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!
@Hambini
7 жыл бұрын
Thanks for the feedback!
@nigelthompson874
2 жыл бұрын
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
@malcolmcog
5 жыл бұрын
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.
@Twotom1
2 жыл бұрын
Thanks! You're a genius who explains things extremely well.
@Hambini
2 жыл бұрын
Glad to help!
@SCMF1962
2 жыл бұрын
Thank you and love all the Info about the bb,, greetings from Singapore 👍❤
@andrelataste
7 жыл бұрын
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!
@Hambini
7 жыл бұрын
You are very welcome
@BelfastHillsBHP
Жыл бұрын
Hambini, great video and excellent potential solution. Sorry if I've missed it, but roughly how much of each Loctite solution should I be using to fix the outer race into the shell? It's a carbon fibre frame. Thanks in advance! Freddie
@BelfastHillsBHP
Жыл бұрын
Hello?!
@stianmaurstad
8 жыл бұрын
This is such a good video & explenation of my imense iritations from my creeking BB30. I have a Norwegian Nakamura, with press fit BB30´s which have plastic cups in which the bearings are pressed into. The hard thing to know then of course, is if the creeking comes from the friction between the Carbon frame and the cups, or from the bearing and the plastic cups, or from them both. I will ask my mechanic if he´ve used the additional locktight primer you showed. Because he has tried to fix this twize with no luck. I can´t believe that the road biking industry haven´t stopped with BB30 and moved on to a better solution. It seems to me that a 90,5mm standard where they machine the titanium bearing housing and have ways to incorporate that titanium housing into the barbon frame, would be the best of both worlds? Or is just the 68mm threaded BSA the best choice? Thanks anyways, so glad to see someone who has had the same problem, yet also the knowledge to do something about it and share. Thanks!!
@Hambini
8 жыл бұрын
Stian Maurstad i think you have got a pf 30 bottom bracket which is very similar. I'll do a video on that shortly. Bearing creak is so annoying.
@maxwell21996
2 жыл бұрын
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🙏
@scin3759
6 жыл бұрын
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.
@Hambini
6 жыл бұрын
Thanks for the feedback
@SkeetSystem
5 жыл бұрын
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
@66Sleepr
4 жыл бұрын
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 ;)
@c.realxperimentslane
9 ай бұрын
hey Hambini, isn't there a need for a spacer between the bearings to counter for pre-load? [I'm really asking not pseudo-telling]. thanks
@Sionnach1601
6 жыл бұрын
I don't think I've watched such an interesting video in AGES. FULL STOP!!
@frankjoshum
7 жыл бұрын
This is phenomenally well done. I love these videos; things me and my cycling buddies have always discussed.
@Hambini
7 жыл бұрын
Josh Frankum thanks for the feedback
@M3CoupeC50
Жыл бұрын
I’m a mechanical engineer and that means nothing in this context. However, I’ve two Time frames with BB30 and over many years or use have never a creak. It’s all about manufacturing; Time makes incredible bikes. The rest use at your own will.
@davidrioux611
4 жыл бұрын
Well spoken, and articulate!
@stephencave7186
4 жыл бұрын
BBRight owner here....never again! Great video as usual from Hambini but not as much bad language used alas 😅
@jamrock6180
2 жыл бұрын
Hi have a S-work venge 2015 with ceramic speed bearings. I have the dreaded creaking. I usually epoxy them in but after a season they start to creak again. Does you replacement part fixes the issue, if not what's my best options? Thanks
@jrcp87
3 жыл бұрын
What is your opinion on the older Kogel BSA30/386-R (24895) which is a BB30 to BB386 adaptor that uses a solid sleeve and threaded BSA bearing holders? Ronald Kuba used one on a Specialized Tarmac to "fix" the creaking issue and install SRAM "BB30" long spindle cranks. I wonder what your take is on these and if you had any other solution or better option to have a very well aligned sleeve on a BB30 Specialized BB to mount long spindle "BB30" SRAM Red cranks.
@markwilson4535
Жыл бұрын
I have a Cannondale Slice from c 2018 ((black/green/white colour) with the original press fit bb30 fitted - I'm interested in replacing the BB but noticed your website is out of stock - any plans to make any more at any stage?
@michaelnikolaev1300
3 жыл бұрын
I hear creak in my BB only when I push on pedals - but when I pull (i.e. pulling up with contact pedals) there are no sounds. How do you think - is this issue caused by bearings/frame contact point, as you described? The frame is carbon Cannodale Super X
@mauriciocastano9822
2 жыл бұрын
An excelent explanation. I have a question. I would like to buy an aluminium road bike. I like two bikes: the first is a Cannondale caad13, with BB30, and the second is a BMC Teamachine alr two, with BSA. Wich of these bikes do you choose? Thanks.
@GavGreaves
7 жыл бұрын
This was incredibly useful and a lot of fun to watch. Really appreciate it. Thanks a lot for making this.
@Hambini
7 жыл бұрын
Thanks for the feedback!
@paranormalcyclist0428
5 жыл бұрын
Hey @Hambini will BB30 will fit into my FSA Omega crankset that requires BB4000 Megaexo?
@chrisphillips5630
5 жыл бұрын
You certainly know your stuff. Just a quick question, I have a cannondale caad 12 and suffer with the dreaded creak. I have you used numerous manufacturing alternatives but to no avail. Contemplating using Loctite, you mentioned the activator , is it worthwhile using the product with aluminium? cheers chris
@Hambini
5 жыл бұрын
It's not usually needed for aluminium. There is no harm in trying it other than the expense.
@antipode_ghost
5 жыл бұрын
What's stopping the one-piece BB that you designed from sliding out of the bike frame (i.e. working its way out towards the drive side)? Thanks for the video!
@ljanmi187
Жыл бұрын
HAMBINI, THE ORIGINS
@JP-om3ou
7 жыл бұрын
Very helpful video. After watching I'm confident that threaded external bb cups are the best for average joe cyclist not racing in Le Tour. subscribed -
@Hambini
7 жыл бұрын
Thanks very much. I agree, the implementation of press fit BB's into bike frames was a bad idea.
@squiresuzuki
7 жыл бұрын
Apparently, Team Sky still insists on threaded bbs, and as far as I can see, Pinarello still uses them on all their bikes. If you can win the TDF today with threaded bbs...yeah, press fit bbs are 100% bs.
@Hambini
7 жыл бұрын
I think that will change when the UCI drop the weight limit. When they do that, the weight saving from a pressfit BB will force Pinarello to look in that direction
@arturnaumiuk8135
6 жыл бұрын
Hambini BTW excellent video and keep up with making more, but I disagree with the comment. BB is a heart of the whole drive system and in my engineering opinion weight savings should never compromise BB area. You can shave the 100g or so elsewhere on the bike. Happy owner of Pino Dogma with threaded BB smiling hearing horror stories about press-fit.
@gregboyd5815
7 жыл бұрын
Hi Thanks for sharing. Like your thinking re these miserable weight saving BB's. Did you use Delrin for your bearing carrier and what interference did you use for tube into the frame and likewise bearing into tube. I am guessing something like 0.03 - 0.04mm - yes/no? The other problem that occurs with stock bearings in the BB is that default bearing is single lip and really is more of a dust seal and not great with sealing out water. have you done any experimentation with alternate seals or even shields for said bearings? I have noted that the non-drive bearings always die before the drive side - I am guessing that the crank provides some form of shield. cheers
@Hambini
7 жыл бұрын
Hi Greg, the fit is a bit of a PITA. You have a compound stack up in some frames and that screws up the final bearing fit which in turn makes the final bearing fit either tight or loose. I was using M7 but recently changed the alloy I use for my bottom brackets and that has necessitated a deviation in the fit. As for the bearings, I have not experienced the non drive side failing before the drive side but it's interesting that you point it out. I also haven't experimented with the seals - I don't have the manufacturing capability for that. Thanks Hambini
@abedfo88
6 жыл бұрын
My praxis works crank has a threaded BSA M30 BB, excellent for fitting a M30 spindle into a BSA english threaded frame. Great compromise.
@sixahem
4 жыл бұрын
I converted to BSA via praxis, been good last 5 years.
@stuntman591
4 жыл бұрын
Hi H, A quick question. Do you mix the Loctite activator with the retaining compound or use the activator on its own? Thanks
@Hambini
4 жыл бұрын
spray on activator and wait for it to dry. then use the retaining compound.
@stuntman591
4 жыл бұрын
@@Hambini Thanks
@MrHaponja
9 ай бұрын
Where I can find drawings for Shimano (24mm) adapter on BB30 ? Or even better BB30 to GXP adapter?
@evelasq1
5 жыл бұрын
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.
@jtk1ify
4 жыл бұрын
cannondale BB30 on aluminium caad8 caused me no end of problems creaking like hell evans just relubed it and gave me it back within a ride creaking again. ended up having a threaded bracket fitted. costly mistake buying a cannondale You are an aerospace engineer wow!
@monzadh
5 жыл бұрын
Hambini, you were so nice back then not one swear word!! lol!
@timtaylor9590
Жыл бұрын
What does the gritty bearing lead to? Catastrophic bearing failure, or just loss of watts?
@scottwhittet5226
2 жыл бұрын
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.
@kevinlee5690
4 жыл бұрын
Still using the focus ST? How is the reliability of the car? Thanks in advance.
@JoeyMesa
5 жыл бұрын
What about the spindle walking within the bearings? I'm not an engineer, but I am a mechanic who has dealt with hundreds of creaky 30mm spindle BB's. From what I've seen, most creaks are from the spindle to bearing interface and not the bearing to frame, or cup to frame interface. I never see any witness marks from movement within the frame, but plenty of wear marks on the spindle from movement within the bearings.
@Hambini
5 жыл бұрын
It should be a transition or sliding fit on the spindle. The interference is on the outside. If the spindle "walks" the outer is also "walking"
@JoeyMesa
5 жыл бұрын
@@Hambini When I say "walking" I'm referring to the the spindle moving side to side within the bearings. Obviously, the spindle has to slide into the bearings to be installed. From what I've seen, the worst offenders are the BB's that use a wavy washer. Even the the correct amount of spacers added, and the wavy washer compressed 2/3 of the way as per what I've seen specified, you can still physically push the cranks assembly sideways and move the spindle a slight amount within the bearings. Over time, an aluminum spindle on a steel bearing will creak once it gets dirty between the bearing to spindle interface. Look at any anodized 30mm spindle that's been used for at least 3000-5000 miles. the anodization will always be worn off where the spindle contacts the bearing from the ability to have micro movements within the bearing.
@Hambini
5 жыл бұрын
Hi Joey. That bit you are referring to is governed by the crank maker not the BB. I do agree, the Shimano style preload system is much better.
@tbone-ip5fi
Жыл бұрын
@@JoeyMesa This is happening to my spindle, as well; it moves within the inner race of the non-drive bearing. At first I thought it was a problem with the preloader (which I have replaced), but the creaking continues, so I inspected the spindle/bearing interface and found movement. In your workshop, what do you do to fix this?
@johnwinchester9654
4 жыл бұрын
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
@Pauleymack
7 жыл бұрын
Brilliant video, great explanation of bb30 issues. A real help for novice mechanics. 👍👍
@Hambini
7 жыл бұрын
Thanks for the feedback!
@MikeSmith-qu5ew
4 жыл бұрын
Thanks for the info its great to find truthful info on bike frames... thanks
@billyshakespeare17
4 жыл бұрын
2013 F29er, Lefty, carbon here. I have a BB30. However there are no cups, spacers or snap rings. All I have are 2 bearings which are pressed directly into the frame's BB shell. I have changed them recently after 11 years of use. Have never had a creak or any problems. I changed them just because they were originals and had a lot of use. No problems. Yes, I know, if it isn't broke, don't fix it. I put white lithium grease around the bearings before I pressed them in. Have been riding all year in mud, dust and general wetness. No problems whatsoever. Am I just lucky?
@paranormalcyclist0428
4 жыл бұрын
Hey Hambini, I have a FSA Omega crankset, and it needed Megaexo 4000BB, what shimano BB counterpart can I use instead?
@PRH123
5 жыл бұрын
Hi, can you show the proper way to remove BB30 bearings...? Reason I ask is I went to a mechanic who is good and who I trust to have my BB looked at because I thought it was creaking (turned out to be something else), and he banged out the bearings from the opposite side with a rubber mallet and a rod, and I was thinking that can't be right what he's doing. Seems it could damage the bearings as well. Thanks!
@MugheesAhmed
5 жыл бұрын
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?
@kevinmartini7418
2 жыл бұрын
Can the Smalley snap rings be reused? Or just left in when new bearings are fitted?
@DANIEL-ls5ku
7 жыл бұрын
Thank you for creating this video.
@Hambini
7 жыл бұрын
Don O you are very welcome
@ericmuschlitz7619
6 жыл бұрын
Important to note whether particular bearings should be installed one side at a time or if they can be installed simultaneously.
@Bangkokian007
7 жыл бұрын
Brilliant idea to use a quick clamp, thanks for the ideas.
@fontane007
4 жыл бұрын
Hi Hambini, I currently have a Boardman Adv 8.9 with a BB4000 bottom bracket that fits to FSA Omega Chain set 10speed, which I'm wanting to replace (as it's crap!) with a Shimano Tiagra or 105 chain set. The only issue I'm unsure of is what BB I should be getting that will fit my bike and the Shimano Chainset? If you can advise on what are the best tools for the job too it would be greatly appreciated 🙏 I've just come across your Blog and they seem to be really interesting, looking forward to going through some of your video catalogue, keep up the good work 👍
@wayne1516
4 жыл бұрын
Thanks for this very informative video. Would you say this creaking sound affects reliability and longevity of the bottom bracket??
@se7ensnakes
Жыл бұрын
I want to order a PF30 BB30 bracket for an 11 spd Sram red crankset. What do I need to measure the extended and or the short?
@UMAGOLF
4 жыл бұрын
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!!!
@Wrong_Sport_Bo
4 жыл бұрын
In @Hambini We Trust
@whitepej
7 жыл бұрын
Superb. I hope you go into production. I for one really appreciate your explanations and engineering expertise. Gonna have a look at your website.
@Hambini
7 жыл бұрын
PETE WHITE thanks very much!
@christianmarquez5667
3 жыл бұрын
Hi..i have a crankset (FSA GOSSAMER) that has to be used with bb30...will it fit to my standard threaded frame?or any other bb that i can use?
@ofthelord1020
3 жыл бұрын
Why bother asking if he doesn't respond.
@clintnieves
5 жыл бұрын
Simply amazing. Such a great gentleman. A true professional.
@Hambini
5 жыл бұрын
Thankyou for the feedback.
@MrJx4000
4 жыл бұрын
@@Hambini, I think Clint was being facetious; either that or he ain't seen your other videos ;-)
@davidgoon1978
5 жыл бұрын
Hambini great info here.. i recently Bought a token bb with threaded shell a bit like praxis one , but i forgot to remove the snap ring. Now i have difficulties removing them.. what am going to do with that ?
@HenryAyrestheoriginal
7 жыл бұрын
I discover after watching your video that my BB is not BB30 as i thought but BB386 EVO. Any thoughts on this particular standard?
@Hambini
7 жыл бұрын
that's probably the best standard out there. wide distance between the bearings and big bearings.
@Sionnach1601
5 жыл бұрын
What bike did it come on? Supersix EVO?
@erwinrili4233
5 жыл бұрын
great infos for the two differrent retaining compounds.added to my knowledge today.
@theodoresmith7544
Жыл бұрын
Hey! Would you still sell these?! I have a creaky caad 12 and can’t take it anymore!!!! Thanks
@howheels
8 жыл бұрын
Awesome video! Do you think your BB alignment issues on the BMC frame may have been caused by the Praxis adapter? I've seen people claim that the expansive nature of it can deform the bracket slightly.
@Hambini
8 жыл бұрын
Having measured the hole after I removed the praxis adaptor, it did not look like it had deformed it BUT I didn't tighten it to the recommended setting by praxis out of fear of cracking the frame.
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