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Bike Related: How to fix a 130mm rear hub?

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  1.  
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      CommentAuthorMIN
    • CommentTimeApr 21st 2008
     

    Fact -

    track bikes are 120mm rear spacing. Road bikes are 130mm rear spacing. Most fixed hubs are 120mm spaced.

    Question -

    I am considering some new bike frames which are 130mm (road) spaced. I have a 120mm track wheelset I'd like to use. Can I use spacers or do I need a new hub?

  2.  

    BEND IT!

    •  
      CommentAuthorMIN
    • CommentTimeApr 21st 2008
     

    Sheldon Brown says you can bend steel frames up to one size - 126mm to 130mm. 130 to 135mm, etc. I don't know about 120mm to 130mm.

  4.  

    You mean 130mm to 120mm, and yea I wouldn't do that either.
    Just bend to 126 and use spacers.

    Is there a reason to not use them?

  5.  

    Are you using it fixed or SS?

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      CommentAuthorMIN
    • CommentTimeApr 21st 2008
     

    fixed gear.

    Re: spacers. I don't know I've never used axle spacers. Theoretically, a 120mm wheel in a 130 spacing would be weaker than a dedicated 130mm spaced wheel.

  7.  

    I think if you cut it down to 126mm, and its only half a centimeter of spacer you'll be ok. That's like a thick washer.
    Besides, there's so much pressure there normally, I don't think that is would loose strength.

    The bigger question is, are the chain stays a symmetrical 130mm?

    •  
      CommentAuthorMax is NOW!
    • CommentTimeApr 21st 2008 edited
     

    Also, if you're super concerned you can have it coldset.
    By someone else.

  9.  

    Third comment in a row, but I just realized that I think you're reading sheldon wrong.

    He's saying that just shoving in a bigger wheel isn't good for more than one size difference, but cold setting (aka spreading / narrowing) can go from 130 - 120, if done right.

    •  
      CommentAuthorMIN
    • CommentTimeApr 21st 2008
     
    Max is NOW!:

    Third comment in a row, but I just realized that I think you're reading sheldon wrong.

    He's saying that just shoving in a bigger wheel isn't good for more than one size difference, but cold setting (aka spreading / narrowing) can go from 130 - 120, if done right.

    Ah, thanks for the clarification Max!

    •  
      CommentAuthorahnichols
    • CommentTimeApr 21st 2008
     

    Everyone I know (including myself) just uses spacers and everything seems to work out well.

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      CommentAuthorMIN
    • CommentTimeApr 21st 2008
     
    ahnichols:

    Everyone I know (including myself) just uses spacers and everything seems to work out well.

    word, you guys are the best.

    •  
      CommentAuthorzacp
    • CommentTimeApr 21st 2008
     

    yah I just rock 5mm spacers on each side. no problem.

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