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  1. #1
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    Miche Advanced machined wrong?

    I bought a Miche advanced crankset with BB and threw them onto my project bike to find there was some play in the chainring. I'm aware that chainrings aren't perfectly round but I need a second opinion on this (or third, fourth etc). Now am I crazy or is this chainring machined wrong? (see video)


    Video
    http://www.youtube.com/watch?v=F4OAIFVoanU

    ANY info or advice would be awesome.

  2. #2
    * adriano's Avatar
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    how did you tighten the bolts?

  3. #3
    thread derailleur erichsia's Avatar
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    your bb shell might need to be faced. ask your lbs.
    Last edited by erichsia; 03-09-09 at 12:29 AM.

  4. #4
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    From what I can see, the crank seems to be doing at least some of the wobbling.

  5. #5
    aka mattio queerpunk's Avatar
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    just to correct your usage, "play" usually refers to a looseness in an interface that shouldn't have looseness. you have a very slight wobble.

    it could be a few things. it's possible that your BB needs to be faced, like erichsia said. That means they take a special tool that removes the paint and a thin layer of the surface from each side of the BB, so that the BB can sit flush in the frame. But not having it would lead the BB to make poor contact. I don't think it could make the axle sit off center (since that would involve the threads) and lead to some crank wobble. If the BB wasn't installed by somebody who knows what they are doing, it could have been put in so that the axle is off center. If this is the case then your BB threads have been stripped.

    Were the cranks installed by somebody who knows what they're doing? Maybe they are not tight.

    Maybe the chainring is bent from shipping now. Remove the chainring, sit the cranks against a flat surface, and see if all of the chainring shelves sit flat. Lay the chainring down to see if it lies flat.

    Then report back.
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  6. #6
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    UPDATE:
    For those of you who were legitimately concerned about this, It turned out to be my BB spindle

  7. #7
    monster
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    Was the BB spindle installed wrong? Or was it actually something wrong from Miche?

  8. #8
    na975
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    you get what you pay for, sorry!

  9. #9
    FNG Jabba Degrassi's Avatar
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    Quote Originally Posted by na975 View Post
    you get what you pay for, sorry!
    It's a $200 crankset, wise-guy.
    velospace: Angus | Exile | Jake The Snake

  10. #10
    na975
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    my point! ^

  11. #11
    FNG Jabba Degrassi's Avatar
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    Quote Originally Posted by na975 View Post
    my point! ^
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  12. #12
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    Manufacturing error, Got the cranks off a display bike at half price. I'm pretty thrilled that they aren't warped or anything.

    also pretty confused about na975s comment.

  13. #13
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    i'd take that and ride the F*** out of it. honestly nothing to worry about. wont drop a chain with that slight wobble

  14. #14
    monster
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    Quote Originally Posted by montero View Post
    Manufacturing error, Got the cranks off a display bike at half price. I'm pretty thrilled that they aren't warped or anything.

    also pretty confused about na975s comment.
    Agreed, I think the Miche cranks are a pretty good deal for real track cranks. I've ridden 75s, Campy Record and the Miche all are very nice cranks.

  15. #15
    cab horn
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    People. Even if the bb shell wasn't faced by a mile it wouldn't cause oscillation like what's seen on the video. Just think about it.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  16. #16
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    Quote Originally Posted by na975 View Post
    you get what you pay for, sorry!
    Ahh, but the BB is a $20 job and nothing to write home about. Maybe he was referring to the BB? Glad it is now sorted. A Miche Advanced is probably going on my first track bike

  17. #17
    hello roadfix's Avatar
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    Quote Originally Posted by montero View Post
    UPDATE:
    For those of you who were legitimately concerned about this, It turned out to be my BB spindle
    Out of curiosity how did you find out? Did you try mounting the crank spider on the non-drive side to see if the wobble was still there?
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  18. #18
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    Quote Originally Posted by roadfix View Post
    Out of curiosity how did you find out? Did you try mounting the crank spider on the non-drive side to see if the wobble was still there?
    I went to another LBS and asked to have it looked at. People are more helpful when you area customer than when you are an employee.

  19. #19
    * adriano's Avatar
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    did you use the miche primato bottom bracket?

  20. #20
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    Quote Originally Posted by adriano View Post
    did you use the miche primato bottom bracket?
    Yes, came with the cranks

  21. #21
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    Quote Originally Posted by montero View Post
    I went to another LBS and asked to have it looked at. People are more helpful when you area customer than when you are an employee.
    You work at a bike shop and you had to go to the competition for help? Yikes! Maybe you should see if that other shop is hiring.

  22. #22
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    I have full faith in the mechanics where I work, they are all very knowledgeable and extremely capable. It's just that when you are a customer the dynamic is different, The other store was more willing to help than the mechanics I work with.

  23. #23
    cab horn
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    Quote Originally Posted by montero View Post
    Yes, came with the cranks
    I'd suggest you toss that in teh garbage and install a regular campy cartridge bb. That is if you don't need the "adjustable chainline". That bb, is one of the ****tiest bb's ever made.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  24. #24
    * adriano's Avatar
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    Quote Originally Posted by operator View Post
    I'd suggest you toss that in teh garbage and install a regular campy cartridge bb. That is if you don't need the "adjustable chainline". That bb, is one of the ****tiest bb's ever made.
    can you elaborate?

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