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Help With Bottom Bracket!

Discussion in 'BMX & Dirt Jumping' started by BloodTail, Oct 31, 2010.

  1. BloodTail

    BloodTail Chimp

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    hey guys n girls,

    i have a jamis ranger sx stock and am upgrading to a norco 250 frame.
    i need to know if the bottom bracket will fit in this frame or am i going to have to buy another one?
     

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  2. nyhc00

    nyhc00 Monkey

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    New BB, the Norco uses a "mid" BB which is a bmx style of bottom bracket. Its an inexpensive part and you should be able to get 1 at your local shop or any bmx mail order.
     
  3. BloodTail

    BloodTail Chimp

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    #3 -   Oct 31, 2010
    Last edited: Oct 31, 2010
  4. sittingduck

    sittingduck Turbo Monkey

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    I don't think the cranks that come on those will work with a bmx bb.
    Get some decent bmx cranks, they'll be 100 times stronger.
     
  5. nyhc00

    nyhc00 Monkey

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  6. BloodTail

    BloodTail Chimp

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    also will i need to buy a new spindle or can i just use my old one?
    and if not, what size will i need?
     
    #6 -   Oct 31, 2010
    Last edited: Oct 31, 2010
  7. v6 4.3

    v6 4.3 Monkey

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    first of all, what kind of cranks do you currently have because they probably wont even work with that bb on ebay.
     
  8. BloodTail

    BloodTail Chimp

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    SR Suntour is written on the side of the cranks.
    will i be able to use these with the stock spindle and mid bb bracket
     
    #8 -   Nov 1, 2010
    Last edited: Nov 1, 2010
  9. v6 4.3

    v6 4.3 Monkey

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    no, i think that crankset takess a cartridge square taper bb
     
    #9 -   Nov 1, 2010
  10. Tetreault

    Tetreault Monkey

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    the norco uses a mid bb like the links shown. Your current crankset will no work, this includes the cranks arms and the spindle. You are going to need a 3-piece style bmx crankset. these crank sets and bottoms brackets come in two different spindle sizes so make sure they match up when you buy them. there is 19mm and 22mm so ya get the mid bb thats that size as well as the crank set. Your are also going to need a new sprocket, and again some of spindle specific, so get the one thats the same size bore hole.
    hope this helps
     
  11. BloodTail

    BloodTail Chimp

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    alright thanks guys :D
     
    #11 -   Nov 2, 2010
    Last edited: Nov 2, 2010