Bottom Bracket threading and other specifications for bikes with
![](https://bikeraceinfo.com/images-all/tech-images/bottom-bracket/Cotter-Cranks.jpg)
![](https://c02.purpledshub.com/uploads/sites/39/2022/02/BBSiteThumbnail2-5632896.jpg)
Simon says: Press-fit bottom brackets are better than threaded - BikeRadar
![](https://c02.purpledshub.com/uploads/sites/39/2019/03/t47-bb-1468332774966-5pxtggnka7jo-52c8cd1-e1564155001724.jpg)
The complete guide to bottom bracket standards - BikeRadar
![](https://c02.purpledshub.com/uploads/sites/39/2019/03/bb30-quiet-1468244241651-14pom5z193uek-5a47566.jpg?webp=1&w=1200)
The complete guide to bottom bracket standards - BikeRadar
![](https://cdn.shopify.com/s/files/1/0349/7357/files/What_Size_Bottom_Bracket_Do_I_need_83mm.jpg?v=1540419659)
What Size Bottom Bracket Do I Need (Size Really DOES Matter) [Video]
![](https://www.sefiles.net/images/library/large/sram-bb30-to-english-threads-bottom-bracket-adaptor-kit-230193-1-11-1.jpg)
SRAM BB30 to English Threads Bottom Bracket Adaptor Kit - Hitchhiker Bike Shop
![](https://www.theproscloset.com/cdn/shop/articles/Bottom_Bracket_identification_guide_1024x1024.jpg?v=1700068180)
Bottom Bracket Identification Guide: BB Standards, Measurements & Diag – The Pro's Closet
![](https://i.pinimg.com/736x/21/7f/f9/217ff9e962871643aebf614c744ee8b8.jpg)
Philippe Thys photo gallery by BikeRaceInfo
![](https://wheelsmfg.com/media/wysiwyg/tech/bb_standards_threaded_exploded.jpg)
Threaded BB Technical Info
![](https://i.ytimg.com/vi/e-8G1G9QNX8/maxresdefault.jpg)
What Type of Bottom Bracket do I Have?
![](https://i.pinimg.com/736x/b4/47/53/b44753b7317857db2ddd5f828af7e7e1.jpg)
FSA-tech-bulletin-chainline-issues-135mm-spacing2 FD to frame chainline distance 43.5 mm
![](https://www.sram.com/globalassets/image-hierarchy/sram-product-root-images/bottom-brackets/bottom-brackets/bb-dub-bsa-a1/black3ql.jpg?w=1000)
DUB BSA Bottom Bracket, BB-DUB-BSA-A1
![](https://www.bikethesites.com/wp-content/uploads/2021/11/How-to-Measure-Bottom-Bracket-6.png)
How To Measure A Bike Bottom Bracket, 52% OFF
![](https://www.parktool.com/assets/img/repairhelp/BB_Article_Round_2-T47sample.jpg)
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![](https://www.parktool.com/assets/img/repairhelp/BB_Article_BB-cupDIRECTION.jpg)
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Bottom bracket - Wikipedia