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  2. Bottom bracket - Wikipedia

    en.wikipedia.org/wiki/Bottom_bracket

    However, Cannondale moved on from that system and developed the SI cranks and the new BB30 unthreaded press-fit bottom bracket standard. BB30 requires special frames which have a 42 mm diameter unthreaded bottom bracket shell (which is larger than the 34.9 mm threaded ISO standard threads) allowing use of internal sealed bearings while their ...

  3. List of bicycle parts - Wikipedia

    en.wikipedia.org/wiki/List_of_bicycle_parts

    There is a bearing surface on the spindle, and on each of the cups that thread into the frame. The bottom bracket may be overhaulable (an adjustable bottom bracket) or not overhaulable (a cartridge bottom bracket). The bottom bracket fits inside the bottom bracket shell, which is part of the bicycle frame

  4. Crankset - Wikipedia

    en.wikipedia.org/wiki/Crankset

    Certain companies such as Cannondale (BB30 open standard, introduced in 2000) have made their own unique bottom bracket standards requiring changes in the bottom bracket shell of the bicycle frame in order to accommodate the bottom bracket/crank design. The open BB30 standard is gaining popularity on high end bicycle and component manufacturers ...

  5. Are doctors overtreating early-stage breast cancer? Is active ...

    www.aol.com/doctors-overtreating-early-stage...

    Cancer is typically treated with surgery, radiation and sometimes chemotherapy. But a new study suggests this standard protocol might not be necessary for a common form of early-stage breast cancer.

  6. US moves to boost crackdown on China Telecom's US unit ...

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    WASHINGTON (Reuters) -The U.S. Commerce Department is moving to further crack down on China Telecom's U.S. unit over concerns it could exploit access to American data through their U.S. cloud and ...

  7. Talk:Bottom bracket - Wikipedia

    en.wikipedia.org/wiki/Talk:Bottom_bracket

    The semi-axles attached in the middle of a standard BSA bottom bracket shell with a Hirth type joint and internal bolt. In 2004 Lightning licensed their design to Specialized Bicycles, who incorporated the design into their FACT carbon crankset and frame which utilized a BB30 bottom bracket shell with pressed in bearings.

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