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: 01/04/2021. This post will explain bottom bracket compatibility. Which bottom brackets (BBs) can be combined with which crankset standards. Before you start, to avoid any misunderstanding:please take the 5 minutes needed to read the compatibility articles use instructions. Posts that explain in detail the history and construction of each BB standard can be found … Read more
Press fit bb, threadless standard – bottom bracket cartridges with cups that are not threaded, but press fitted into the frame.