Fsa k force chainset bb30

Bigmitch
Bigmitch Posts: 65
edited July 2013 in Workshop
What's size is the shaft that goes through the bb30

Comments

  • arran77
    arran77 Posts: 9,260
    Got one of these on my bike and they're great, don't know the answer to your question though, sorry!!

    Why not phone someone like CRC and ask them :)
    "Arran, you are like the Tony Benn of smut. You have never diluted your depravity and always stand by your beliefs. You have my respect sir and your wife my pity" :lol:

    seanoconn
  • keef66
    keef66 Posts: 13,123
    Erm, I think the clue's in the name, and you'll find it's 30mm!
  • bondurant
    bondurant Posts: 858
    The 30 refers to the diameter of the BB.
  • keef66
    keef66 Posts: 13,123
    The 30 refers to the diameter of the spindle, which is what I thought the OP was asking. This from Cannondale's website:

    The Birth of BB30.

    Never lose sight of where it all began...In 2000 while the industry standard bottom bracket spindle diameter was still 24mm, Cannondale introduced our System Integrated (Si) crankset designed in conjunction with an oversized bottom bracket shell and 30mm spindle, further reducing weight and increasing stiffness. It debuted at the Tour de France.
  • keef66
    keef66 Posts: 13,123
    edited July 2013
    Double
  • arran77
    arran77 Posts: 9,260
    keef66 wrote:
    Erm, I think the clue's in the name, and you'll find it's 30mm!

    Erm, I think he didn't realise that (nor did I for that matter), hence his question :roll:
    "Arran, you are like the Tony Benn of smut. You have never diluted your depravity and always stand by your beliefs. You have my respect sir and your wife my pity" :lol:

    seanoconn
  • Bigmitch
    Bigmitch Posts: 65
    I've got a 30pf bottom bracket and the k force has a bigger spindle than mine so need to find out if can get a bigger one . The 30 bit refers to the outer diameter of the bottom bracket
  • TheRealGuybrush
    TheRealGuybrush Posts: 125
    The "30" bit does not refer to the outer diameter of the BB. It refers to the diameter of the crank spindle as others have already said.
  • Monty Dog
    Monty Dog Posts: 20,614
    30mm is the nominal diameter of the spindle, that's why it's called BB30 - the bottom bracket shell ID is 41.9mm and the bearings are 30 ID x 42 OD x 7mm
    Make mine an Italian, with Campagnolo on the side..
  • Bigmitch
    Bigmitch Posts: 65
    Can I get a pf30 bottom bracket with a 30 mm hole for the spindle
  • Buckie2k5
    Buckie2k5 Posts: 600
    :shock:
  • Monty Dog
    Monty Dog Posts: 20,614
    PF30 uses a 30mm spindle too but the BB shell is even bigger at 46mm diameter.
    Make mine an Italian, with Campagnolo on the side..
  • Bigmitch
    Bigmitch Posts: 65
    Monty Dog wrote:
    PF30 uses a 30mm spindle too but the BB shell is even bigger at 46mm diameter.
    My trek has a pf30 but the fsa spindle is bigger ?
  • Monty Dog
    Monty Dog Posts: 20,614
    http://www.qbp.com/diagrams/TechInfo/FS ... tchart.pdf

    They're all listed here including the fact that all BB30/PF30 uses the same size of spindle and bearings.
    Make mine an Italian, with Campagnolo on the side..
  • Bigmitch
    Bigmitch Posts: 65
    Monty Dog wrote:
    http://www.qbp.com/diagrams/TechInfo/FSA/externalbbfitchart.pdf

    They're all listed here including the fact that all BB30/PF30 uses the same size of spindle and bearings.
    Mmmmmmm was told by bike shop my trek 2.3 2013 has a pf30 been looking on Internet but can't confirm even on trek web site

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