Our beginners guide to bottom bracket standards! Which one you have on your bike?
ฝัง
- เผยแพร่เมื่อ 5 ก.ค. 2024
- Here it is, our beginners guide to bottom bracket standards. Learn all the basics of threaded and press fit bottom brackets and find out which one you have on your bike.
If you like our channel then please consider supporting us in creating great cycle maintenance related videos here:
/ cyclemaintenanceacademy
Visit our blog page to find great cycle maintenance related articles:
www.cyclemaintenanceacademy.com
00:00 - Start
00:07 - Support our channel on Patreon
00:15 - Welcome
00:37 - What is a bottom bracket
00:56 - english and italian threads on threaded bottom bracket
01:19 - Cup and cone (three piece) bottom brackets
01:50 - Sealed bearing cartridge bottom brackets
02:54 - External beaing bottom brackets
03:32 - Press fit bottom brackets
03:49 - Ashtabula (one piece crank) bottom brackets
04:16 - Direct fitting press fit bearings
04:37 - Press fit bottom bracket units
05:09 - Final words - กีฬา
Very helpful video, thank you, the exploded bb examples was great. I'm looking at avoiding press fit and sticking with threaded, maybe the newish T47.
Hi, appreciate you tuning in! I'm thrilled to hear that you found the video helpful, especially the exploded BB examples. Thanks a lot for bringing the new T47 standard to my attention. It seems like I'll need to update the video, as this standard is gaining popularity. If you're planning to use it, feel free to share your opinion with us!🙂
The best vid about bottom bracket standards
Hey, thanks so much for your positive feedback!🙂🙏 I'm glad that you found the video helpful.
If you have any more questions or if there's anything else you'd like to see covered, feel free to let me know.
Happy cycling!🚲
After watching so many videos this one is the best explanation for noobs like me. So I just dismantled my budget bike, weak ball bearing housing inside, crushed. Would these be upgradable to sealed bearings so I don't have to replaced again in 6 months!
Hi and thatnks for your comment. That's great to hear that you found the video to be the best explanation for beginners like yourself! As for upgrading your bottom bracket, yes that will be possible and would more likely avoid having to replace it every six months.Cartridge bearings are generally low maintenance and perform better overall. Just make sure that your cartridge bottom bracket is compatible. I made a video taht might be of help: th-cam.com/video/qGuIiPwKXck/w-d-xo.html. If you have any further questions or need assistance with your bike upgrade, feel free to ask. Good luck with the improvements!🙂
Nice overview!🎉
Thank you, glad you enjoyed it 😁
Do these numbers ring a bell? BB 2421 and 35-50Nm L BSA
Hi, and thanks for your question. I'm not aware of BB (bottom bracket) 2421. 35-50Nm is the torque recomendation (how much you should tighten it), L stands for left side and BSA is a british thread.
Why do people say that a square tapered crankset/chainset/bottom bracket is bad? (and why are they called those three different things?)
I have an old trek navigator and the bottom bracket measures out to be 73x116mm cant seem to find any that size. Any suggestions.
Hi Steven, thanks for the comment and apologies for not getting back to you sooner. Sorry to hear that you struggle to find the correct axle length replacement bottom bracket. Are there simmilar lengths available for example 73x118? That's ony 2 mm difference which shouldn't have a much impact on your gears. Let me know if you managed to find the correct replacement or if you decided to use a slightly diffrent size and how this works for you.
Still not sure which I need..
Hi, and thanks for the comment. I absolutely understand, there are many types of bottom brackets, and some of them are quite similar. If you still struggle then it may be a good idea to visit your LBS to ask them for advice. Let me know once you find out which bottom bracket you need. Good luck!👍
I found a new bike someone threw out missing the berring crank and pedals. How do I know which berring type I have?
Hi Aaron, thanks for your question. First check if there is a thread in the bottom bracket shell. If there is you can use threaded bottom brackets. If there isn't you will need to fit a press fit bottom bracket. To determine the specific type of threaded or threadless bottom bracket you need, you'll have to take into account the crankset you plan to install. Bottom brackets are designed to be compatible with certain cranksets, so it's important to make sure they match up.Once you've decided on the crankset you want to use, refer to the manufacturer's recommendations to find out which bottom bracket is compatible with it. If you have any more questions or need further assistance, feel free to ask. Good luck with your bike project!🙂
@@cyclemaintenanceacademy thank you "cyclist maintenance academy."
absolutely ridiculous how many standards there are
More than a dozen. There seems to be a trend of increasing incompatibility in the modern cycling market. Some of it is incremental 'improvements' but I think there is also an element of vendor 'lock in'.
Edit 13Nov2023 :
Search for " wheelsmfg Bottom Bracket Standards " for a list.
Hey, thanks for your comment. Totally get your frustration-it's a maze out there with all these bottom bracket standards. If you ever need help navigating through the standards jungle, feel free to ask. We're all in this bike tech puzzle together! 🚴♂️🤔