Bottom Bracket Standards Explained | Road Bike Maintenance
Step into the bottom bracket standard maze with Simon Richardson. Don’t worry, he knows his way around.
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BB30? PF30? Octalink? Hollowtech? The world of bottom bracket standards is about as complicated as it gets in cycling. Simon explains all in this video.
Watch more on GCN…
How to change a threaded bottom bracket ▶︎ http://gcn.eu/1VfBdFW
How to resolve bottom bracket creaks ▶︎ http://gcn.eu/1TuyjIR
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what type of bottom bracket is on canyon ultimate al slx ?
can you put a dura ace crankset on a SM BB72-41B?
Can i change my octalink to bb30?
Sooooo…… about not needing a tool to remove Octalink Cranks…….
My brains are scrambled. Give me Shimano Square taper and threaded and call it a day.
These videos are extremely helpful. I've been a bicycle mechanic at multiple shops, but there is always something new to learn. Thank you for the details, and the presentations in these videos makes the learning process much easier. I'd recommend these videos to anyone (novice or seasoned rider/mechanic)
i got square tapper to what newer version bracked i can upgrade thanks.
So, is it recommended to change out your BB when replacing your crankset?
How about BB press fit 92mm? :-ss
Hello, I have got the Square tapered On my bike. And my Left Crankarm Keeps on Falling out, I have changed the Bottom bracket and the Crankarm Still it falls off. I was thinking about Getting the Hollow Version because everyone says its soo Good but I don't know if it is gonna fit? Or maybe the Octalink Instead I don't know :/ Help me 🙁
Very educational video (thanks), which left me with a question.
Could I change my Ultegra 6700 groupset with a Campangnolo groupset (dont need it, just always wanted one)? Anyone???
My main concern is the bottom bracket, and I believe that I currently have BB 68 mm on my 10-speed 2010 Specialized Tarmac.
What would be the best approach to do the swap?
Thanks.
Guys…a 30 second commercial now?
I'm planning to upgrade my 2015 CAAD8 with Claris Groupset, I"m eyeing on new Tiagra 4700..
As of now I'm having a minor problem regarding my BB, it's now creaking; well I think that's normal as I already rode it for 9000KM .. my frame (CAAD8) has FSA Vero cranks there and BB30…
Do Tiagra 4700 BB will fit to my Frame? TIA
Long live threaded Italian and threaded English brackets! They simply don't creek as much! Super important if you build your own bike : )
hey man, great vid. just wondering if you could clarify… the bike im buying has a sealed cartridge bottom bracket… i just want to know… is it gonna end up creeking like my walmart bike did?? i cant find the specs on the walmart bike.. this is driving me crazy
@Ming Lee 感謝您的翻譯!!
This is givi g me a headache
In my opinion, all pressfit BBs are shit with creaking and all other problems that come with them. It probably works for the pros because they change bikes every season, but not so much for an average cyclist. I service my BB like every 100 riding hrs or so. Think about how many times you can punch out and service pressfit BBs before BB shell goes out of tolerance and start creaking. Cudos to Pinarello for staying with traditional Italian treaded BBs.
wait, Cannondale invented something that ended up being notoriously difficult to work on, difficult to replace, ultra-proprietary, and completely pointless? I'm shocked.
Love this video. Helps me sleep
Hello, my bike has a shimano bc1 37" x 24" road bottom bracket. What
shimano COMPACTcrank set should I buy that is compatible to this bottom
bracket? Thank you in advance.
But which spins better?
Just went from square taper to Hollowtech II BB and the difference is night and day imo. I Will never go back to a st bb ever again.
Thanks GCN! You just saved me a lot of time and my headache switched from BB-standards to consider wether to stick with my BB30 power meter or "upgrade" to a new more compatible one… 🙂
British thread not English thread !?
What I just learned is that I will be letting my local shop do any work on my bottom bracket whilst I sip on two fingers on Glenlivet, sans ice of course.
LOL… you guys are great! this vid hurt my head!
Getting to the bottom of the bottom bracket. Nice.
"There is no reason they should drive you to the point of insanity" Thanks, but true!
ill never buy press fit, i replace my bb seemingly every other season. external bb one tool, 5 min, done
Yeah that insecent creaking sounds very familiar
#torqueback will changing bottom bracket with ceramic bearing improve speed ? change bearing to ceramic hub, and ceramic oversize pulley will improve ride ?
Curious as to space factors between BB's and Frame Diameter? Bought a Cube elite HPC frame and was issued with a BB91-42 BB, the diameter is 42mm, the frame is 41mm, im finding it impossible to get specification or data sheets on the frame, i can't find and tolerance guides for BB's, i read .025mm was one tolerence another was +/-0.5mm, It seems there is no documented standards or guidelines for installs. i don't want to force the BB i just want to confim i was issue with the correct BB, the guy was suppose to fit it, and i cant trust the local shop. I apologize i'm only a novice bike mechanic and doing this as a hobby, any advice would be greatly appreciated. regards Aidan
Its a piss take that they don't put a small stamp under the bottom bracket stating the type of BB needed and and install side.But they should never have come up with multiple types they should all confirm to 1 standard and do away with the others,rant over.
I'll keep it simple… I'll stick with the old square one… it works.
What about Campagnolo BB? I have a BBR60
Can I convert from a square taper to a hollowtech?
What bottom bracket have a 6 pin
no mention of the crappy 6 notch plasicky bottom bracket that i have!
You didn't have semi sealed bottom bracket like on my nth bike I ride
That's cleared that up then, I think?
The bb386 it fits the shimano ultegra 6800 crank?
"ISIS, which didn't sound quite so bad at the time". Now that is a funny, Monty-Python esque, line. 🙂
my fave GBN personality; funny as hell. rock on Simon!
Im not confused. Not even a little. Well maybe a little.
BBW?
I think I need to lie down after this. The horror. THE HORROR!!!!!!!!!!!!!!!!!!!
holy crap.