Updated: 09/09/2020. This post will give a short overview (list) of threadless (press fit) BB standards. For each BB standard there is an overview intersection of BB cartridge and frame’s BB shell where BB is inserted to, followed by it’s dimensions. Look here for explanation of all the different BB standards. BB30 Shell width: 68 … Read more
Updated: 16/11/2018. This post explains threaded T47 bottom bracket (BB) standard. Look here for explanation of all the other BB standards. 1. Description of T47 standard T47 is a modern standard with BB cartridges screwed into the frame BB shell threads. Developed by Chris King and Argonaut Cycles companies. Announced in 2015, also known … Read more
Press fit bb, threadless standard – bottom bracket cartridges with cups that are not threaded, but press fitted into the frame.
Updated: 28/04/2021. This post will explain bicycle bottom bracket standards. It is the first in the series of posts on the subject, explaining basic terms, then each standard. Most threaded standards are explained, while a separate post explains press-fit (threadless) bottom brackets. The last post will address BB and crankset compatibility and interchangeability. Contents: What … Read more