Cycling Equipment · Public discussion

Need help replacing BB for Shimano 600

Started by Buffalo Dude · · Last activity · 7 posts · 1,397 views

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Cycling Equipment
Published
17 April 2007
Last activity
18 April 2007
Original author
Buffalo Dude
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  1. Bike is of unknown age (probably around 12 years old) and uses Shimano 600. Started making a clicking/popping while pedaling, so I want to replace it. Pictures:

    [IMG]i5.photobucket.comIMG 2346.jpg[/IMG]

    Historical post image

    Will this work as a replacement?
    [img]images.rei.com1143355.jpg[/img]
    http://www.rei.com/online/store/ProductDisplay?productId=48152585&storeId=8000&catalogId=40000008000&color=NONE&img=/media/o/1143355.jpg&view=large

    What size? I'm assuming I measure from end to end (115 mm)?

  2. Sheldon Brown maintains that the 600 crankset goes with a 113mm or 115mm spindle. (I'd go for the shorter spindle as long as your chainrings aren't already quite close to the chainstay; this keeps q-factor small- getting the 115mm, however, guarantees that there will be no disasters). You probably have a 68mm BB shell with English thread (I'm not sure that Shimano ever made BB cups for other thread types).
    So, provided that you get spindle length, shell width and thread type right, the one that you have depicted will be fine.
    If it were me, I'd get the UN-73 rather than the UN-54 -the bearings ought to last a bit longer.

  3. artemidorus said:

    Sheldon Brown maintains that the 600 crankset goes with a 113mm or 115mm spindle. (I'd go for the shorter spindle as long as your chainrings aren't already quite close to the chainstay; this keeps q-factor small- getting the 115mm, however, guarantees that there will be no disasters). You probably have a 68mm BB shell with English thread (I'm not sure that Shimano ever made BB cups for other thread types).
    So, provided that you get spindle length, shell width and thread type right, the one that you have depicted will be fine.
    If it were me, I'd get the UN-73 rather than the UN-54 -the bearings ought to last a bit longer.

    I can't find anyone that sells them anymore 🙁

    Maybe I should buy a couple to stock up because everything else is in excellent condition.

  4. Buffalo Dude said:

    I can't find anyone that sells them anymore 🙁

    Maybe I should buy a couple to stock up because everything else is in excellent condition.


    http://www.universalcycles.com/shopping/product_details.php?id=63&category=347
    These fellas have them on "backorder" - I'm not sure whether that means that they'll ever have them again.

  5. http://www.phantomcycles.com.au/product.php?productid=52&cat=44&page=1

  6. Are you looking in Aus or USA? I have the full range threaded and un-threaded in one of my trade catalogues. 😎

  7. gclark8 said:

    Are you looking in Aus or USA? I have the full range threaded and un-threaded in one of my trade catalogues. 😎

    I'm in USA. Got a couple leads from my LBS that I'll check out tomorrow about NOS parts.

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