s1ned писал(а):
Alexei писал(а):
BB30
это не ЬЬ30
http://www.ninerbikes.com/fly.aspx?layo ... &taxid=271кмк, это Bio-Centric bottom bracket
Цитата:
No more creaks, no more rounded EBB shells, no more debate about which system is best. Niner’s new Bio-Centric bottom bracket system eliminates ALL of the issues with any eccentric bottom bracket system in an amazingly simple way: It’s a two piece design.
One of the Bio-Centric’s cups goes into the frame on the driveside of a normal 68mm EBB shell. The other goes into the frame on the non-drive side. There is an offset bolt that goes in from the non-drive side cup and threads into the drive side cup. The combination of this offset bolt, and the close tolerance of the Bio-Centric cup’s internal fit means that the threads for the bottom bracket line up automatically. Rotate one cup around the EBB shell, and the other will rotate with it, keeping the threads for the bottom bracket aligned. Any minor mis-alignment of these threads will be corrected once the bottom bracket and cranks are installed.
The final part of the puzzle, the one that solves all of the current EBB problems, are the flanges on the outside of the Bio-Centric’s cups. These flanges go ALL the way around the EBB shell, and clamp down against the side wall of the shell as the offset bolt is tightened.
Там же, на второй странице, написано про выбор любой каретки на выбор, включая ВВ30. Я понял, что делается это при помщи дополнительных вставок: The Air 9 Carbon features Bio-Centric EBB technology and CYA Bottom Bracket system – the most flexible BB/gearing system available. Run your Niner singlespeed or geared or take advantage of several BB inserts to accommodate your choice of bottom bracket technologies, including the new BB-30 standard. We know what die-hard 29er riders want!
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