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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. Cannondale - Wikipedia

    en.wikipedia.org/wiki/Cannondale

    The Hollowgram bottom bracket axle is also hollow aluminum and oversized. Cannondale has since made this a free international standard known as BB30. [18] In BB30, the diameter of the bottom bracket spindle is increased from the standard 24mm to 30mm. As a result, the inside diameter of the bottom bracket shell is increased to 42mm.

  4. Pinarello - Wikipedia

    en.wikipedia.org/wiki/Pinarello

    The frame also features ONDA forks and rear stays as well as the BB30 bottom bracket. [20] The Pinarello Marvel is an entirely new asymmetry frame originating from the Pinarello Paris (constructed from Torayca 50HM1.5 carbon fibre) made from 30HM12K carbon. Rigidity of the frame is further improved by the usage of a tapered headset (1" 1/8 - 1 ...

  5. 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 ...

  6. List of bicycle parts - Wikipedia

    en.wikipedia.org/wiki/List_of_bicycle_parts

    Bottom bracket: The bearing system that the pedals (and cranks) rotate around. Contains a spindle to which the crankset is attached and the bearings themselves. There is a bearing surface on the spindle, and on each of the cups that thread into the frame.

  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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