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Thread: coaster hub

  1. #1
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    coaster hub

    hey guys, been awhile between posts. just aquired a frame that requires a coaster hub for the rear wheel so I seem to have that sorted but the bottom bracket requires the three piece american setup. The casing is around 68mm long (2"21/32') long and 51mm or 2" wide internally. I need a bracket but what size

  2. #2
    one chain, two sprockets
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    You need an "American" botom bracket, or an "American" adaptor to use a euro BB.

    Tom P.

  3. #3
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    The guys at the LBS said that today but searching on the net for said product is confusing and quality products are brands that I know nothing of. Coming from Australia we seem to be sheltered from a wide variety of brands, which is hard.
    The other road was to get a EBB shell but I have horizontal dropouts so that was not an issue. I see the main problem will be getting a straight chain line from whatever product I purchase.

  4. #4
    one chain, two sprockets
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    A BMX BB works really well with American BB frames:
    Profile_BB.jpg
    This BB uses the pictured spacers to dial-in the chainline.

    Your ultimate choice of BB will also depend on the cranks you intend to use. I'm not saying you need to use BMX cranks, but it may be a simple and inexpensive solution, although you could also spend upwards of US$200 for a BMX crank/BB.

    BMX is still big in Oz, isn't it? Try to find a BMX shop...

    Tom P.

  5. #5
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    Quote Originally Posted by Briggsy76
    The guys at the LBS said that today but searching on the net for said product is confusing and quality products are brands that I know nothing of. Coming from Australia we seem to be sheltered from a wide variety of brands, which is hard...
    Funnily enough Australia is where I sourced mine. Try the guys at Edge Cycles in Cairns - I think ask for Victor/Vincent?
    As little bike as possible, as silent as possible.
    Latitude: 5736' Highlands, Scotland

  6. #6
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    There is a dedicated BMX shop nearby and I have friend who has connections through anouther shop that may beable to help. the sealed bearings look the goods.

  7. #7
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    The bottom bracket issue is now killing me and findind a good quality hub is hard too. A local shop has told me that adaping the BB from US to the Euro is a good idea. ( and i like it) that means I can use the truvative crank and BB that I am fond of. The length of the BB is now an issue to keep a straight chainline. A 3 speed hub is out of the question because the dropouts are 110mm apart and the thinnest hub I have seen is 118mm. I know I can manipulate the frame a little but would prefer not too.
    Thinking about it, if I get the hub and attach it to the frame then I attach the BB adapter then I can remove the current BB and crank frrom the other SS and put them on the frame I can measure the distance and know.
    Thoughts people Please I am tired of condesending Bikeshop staff. Get this, I was told yesterday that an American 3 piece BB did not exist. Funny hugh. (yoda voice) Walk out of shop I did.

  8. #8
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    If the frame is steel, 8mm is nothing. Spread away.
    As little bike as possible, as silent as possible.
    Latitude: 5736' Highlands, Scotland

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